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1. NEXO: Neutrinoless double beta decay search beyond $10^{28}$ year half-life sensitivity

Author: nEXO Collaboration, Adhikari, G., Kharusi, S. Al, Angelico, E., Anton, G., Arnquist, I. J., Badhrees, I., Bane, J., Belov, V., Bernard, E. P., Bhatta, T., Bolotnikov, A., Breur, P. A., Brodsky, J. P., Brown, E., Brunner, T., Caden, E., Cao, G. F., Cao, L., Chambers, C., Chana, B., Charlebois, S. A., Chernyak, D., Chiu, M., Cleveland, B., Collister, R., Czyz, S. A., Dalmasson, J., Daniels, T., Darroch, L., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolgolenko, A., Dolinski, M. J., Dragone, A., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fu, Y. S., Gallina, G., Gautam, P., Giacomini, G., Gingras, W. Gillis C., Goeldi, D., Gornea, R., Gratta, G., Hardy, C. A., Harouaka, K., Heffner, M., Hoppe, E. W., House, A., Iverson, A., Jamil, A., Jewell, M., Jiang, X. S., Karelin, A., Kaufman, L. J., Kotov, I., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lindsay, R., MacLellan, R., Mahtab, M., Martel-Dion, P., Masbou, J., Massacret, N., McElroy, T., McMichael, K., Peregrina, M. Medina, Michel, T., Mong, B., Moore, D. C., Murray, K., Nattress, J., Natzke, C. R., Newby, R. J., Ni, K., Nolet, F., Nusair, O., Ondze, J. C. Nzobadila, Odgers, K., Odian, A., Orrell, J. L., Ortega, G. S., Overman, C. T., Parent, S., Perna, A., Piepke, A., Pocar, A., Pratte, J-F., Priel, N., Radeka, V., Raguzin, E., Ramonnye, G. J., Rao, T., Rasiwala, H., Rescia, S., Retière, F., Ringuette, J., Riot, V., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Shang, X., Soma, A. K., Spadoni, F., Stekhanov, V., Sun, X. L., Tarka, M., Thibado, S., Tidball, A., Todd, J., Totev, T., Triambak, S., Tsang, R. H. M., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Vivo-Vilches, C., Vogel, P., Vuilleumier, J-L., Wagenpfeil, M., Wager, T., Walent, M., Wamba, K., Wang, Q., Wei, W., Wen, L. J., Wichoski, U., Wilde, S., Worcester, M., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yan, W., Yang, H., Yang, L., Zeldovich, O., Zhao, J., and Ziegler, T.
Subjects: Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract: The nEXO neutrinoless double beta decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon to search for the decay in $^{136}$Xe. Progress in the detector design, paired with higher fidelity in its simulation and an advanced data analysis, based on the one used for the final results of EXO-200, produce a sensitivity prediction that exceeds the half-life of $10^{28}$ years. Specifically, improvements have been made in the understanding of production of scintillation photons and charge as well as of their transport and reconstruction in the detector. The more detailed knowledge of the detector construction has been paired with more assays for trace radioactivity in different materials. In particular, the use of custom electroformed copper is now incorporated in the design, leading to a substantial reduction in backgrounds from the intrinsic radioactivity of detector materials. Furthermore, a number of assumptions from previous sensitivity projections have gained further support from interim work validating the nEXO experiment concept. Together these improvements and updates suggest that the nEXO experiment will reach a half-life sensitivity of $1.35\times 10^{28}$ yr at 90% confidence level in 10 years of data taking, covering the parameter space associated with the inverted neutrino mass ordering, along with a significant portion of the parameter space for the normal ordering scenario, for almost all nuclear matrix elements. The effects of backgrounds deviating from the nominal values used for the projections are also illustrated, concluding that the nEXO design is robust against a number of imperfections of the model., Comment: 26 pages, 19 figures, version accepted by Journal of Phys. G
Published: 2021
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2. Reflectivity of VUV-sensitive Silicon Photomultipliers in Liquid Xenon

Author: Wagenpfeil, M., Ziegler, T., Schneider, J., Fieguth, A., Murra, M., Schulte, D., Althueser, L., Huhmann, C., Weinheimer, C., Michel, T., Anton, G., Adhikari, G., Kharusi, S. Al, Angelico, E., Arnquist, I. J., Badhrees, I., Bane, J., Beck, D., Belov, V., Bhatta, T., Bolotnikov, A., Breur, P. A., Brodsky, J. P., Brown, E., Brunner, T., Caden, E., Cao, G. F., Chambers, C., Chana, B., Charlebois, S. A., Chernyak, D., Chiu, M., Cleveland, B., Craycraft, A., Daniels, T., Darroch, L., Der Mesrobian-Kabakian, A., Croix, A. de St, Deslandes, K., DeVoe, R., Di Vacri, M. L., Dolinski, M. J., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Gallina, G., Gautam, P., Giacomini, G., Gingras, C., Goeldi, D., Gorham, A., Gornea, R., Gratta, G., Hansen, E. V., Hardy, C. A., Harouaka, K., Heffner, M., Hoppe, E. W., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M., Karelin, A., Kaufman, L. J., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lindsay, R., MacLellan, R., Martel-Dion, P., Massacret, N., McElroy, T., Peregrina, M. Medina, Mong, B., Moore, D. C., Murray, K., Nattress, J., Natzke, C. R., Newby, R. J., Nolet, F., Nusair, O., Ondze, J. C. Nzobadila, Odgers, K., Odian, A., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Raguzin, E., Ramonnye, G. J., Rasiwala, H., Rescia, S., Retière, F., Richard, C., Richman, M., Ringuette, J., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Soma, A. K., Spadoni, F., Stekhanov, V., Stiegler, T., Tarka, M., Thibado, S., Tidball, A., Todd, J., Totev, T., Triambak, S., Tsang, R., Vachon, F., Veeraraghavan, V., Viel, S., Vivo-Vilches, C., Walent, M., Wichoski, U., Worcester, M., Wu, S. X., Xia, Q., Yan, W., Yang, L., and Zeldovich, O.
Subjects: Physics - Instrumentation and Detectors
Abstract: Silicon photomultipliers are regarded as a very promising technology for next-generation, cutting-edge detectors for low-background experiments in particle physics. This work presents systematic reflectivity studies of Silicon Photomultipliers (SiPM) and other samples in liquid xenon at vacuum ultraviolet (VUV) wavelengths. A dedicated setup at the University of M\"unster has been used that allows to acquire angle-resolved reflection measurements of various samples immersed in liquid xenon with 0.45{\deg} angular resolution. Four samples are investigated in this work: one Hamamatsu VUV4 SiPM, one FBK VUV-HD SiPM, one FBK wafer sample and one Large-Area Avalanche Photodiode (LA-APD) from EXO-200. The reflectivity is determined to be 25-36% at an angle of incidence of 20{\deg} for the four samples and increases to up to 65% at 70{\deg} for the LA-APD and the FBK samples. The Hamamatsu VUV4 SiPM shows a decline with increasing angle of incidence. The reflectivity results will be incorporated in upcoming light response simulations of the nEXO detector., Comment: 18 pages, 11 figures
Published: 2021
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3. Event Reconstruction in a Liquid Xenon Time Projection Chamber with an Optically-Open Field Cage

Author: Stiegler, T., Sangiorgio, S., Brodsky, J. P., Heffner, M., Kharusi, S. Al, Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bolotnikov, A., Breur, P. A., Brown, E., Brunner, T., Caden, E., Cao, G. F., Cao, L., Chambers, C., Chana, B., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Croix, A. De St., Der Mesrobian-Kabakian, A., Deslandes, K., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Edaltafar, F., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E. V., Hoppe, E. W., Hößl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lv, P., MacLellan, R., Massacret, N., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D. C., Murray, K., Nakarmi, P., Natzke, C. R., Newby, R. J., Ni, K., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rescia, S., Retière, F., Richman, M., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Sun, X. L., Tarka, M., Thibado, S., Tidball, A., Todd, J., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J. -L., Wagenpfeil, M., Wager, T., Walent, M., Wang, Q., Wei, W., Wen, L. J., Wichoski, U., Worcester, M., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors
Abstract: nEXO is a proposed tonne-scale neutrinoless double beta decay ($0\nu\beta\beta$) experiment using liquid ${}^{136}Xe$ (LXe) in a Time Projection Chamber (TPC) to read out ionization and scintillation signals. Between the field cage and the LXe vessel, a layer of LXe ("skin" LXe) is present, where no ionization signal is collected. Only scintillation photons are detected, owing to the lack of optical barrier around the field cage. In this work, we show that the light originating in the skin LXe region can be used to improve background discrimination by 5% over previous published estimates. This improvement comes from two elements. First, a fraction of the $\gamma$-ray background is removed by identifying light from interactions with an energy deposition in the skin LXe. Second, background from ${}^{222}Rn$ dissolved in the skin LXe can be efficiently rejected by tagging the $\alpha$ decay in the ${}^{214}Bi-{}^{214}Po$ chain in the skin LXe., Comment: 11 pages, 12 figures
Published: 2020
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4. Reflectance of Silicon Photomultipliers at Vacuum Ultraviolet Wavelengths

Author: Lv, P., Cao, G. F., Wen, L. J., Kharusi, S. Al, Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breur, P. A., Brodsky, J. P., Brown, E., Brunner, T., Mamahit, S. Byrne, Caden, E., Cao, L., Chambers, C., Chana, B., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Croix, A. De St., Der Mesrobian-Kabakian, A., Deslandes, K., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Doria, L., Dragone, A., Echevers, J., Edaltafar, F., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fucarino, A., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., MacLellan, R., Massacret, N., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D. C., Murray, K., Nakarmi, P., Natzke, C. R., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rescia, S., Retière, F., Richman, M., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J. -L., Wagenpfeil, M., Wager, T., Walent, M., Wang, Q., Watkins, J., Wei, W., Wichoski, U., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: Characterization of the vacuum ultraviolet (VUV) reflectance of silicon photomultipliers (SiPMs) is important for large-scale SiPM-based photodetector systems. We report the angular dependence of the specular reflectance in a vacuum of SiPMs manufactured by Fondazionc Bruno Kessler (FBK) and Hamamatsu Photonics K.K. (HPK) over wavelengths ranging from 120 nm to 280 nm. Refractive index and extinction coefficient of the thin silicon-dioxide film deposited on the surface of the FBK SiPMs are derived from reflectance data of a FBK silicon wafer with the same deposited oxide film as SiPMs. The diffuse reflectance of SiPMs is also measured at 193 nm. We use the VUV spectral dependence of the optical constants to predict the reflectance of the FBK silicon wafer and FBK SiPMs in liquid xenon.
Published: 2019
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5. Measurements of electron transport in liquid and gas Xenon using a laser-driven photocathode

Author: Njoya, O., Tsang, T., Tarka, M., Fairbank, W., Kumar, K. S., Rao, T., Wager, T., Kharusi, S. Al, Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Brodsky, J. P., Brown, E., Brunner, T., Caden, E., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Chana, B., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Croix, A. De St., Der Mesrobian-Kabakian, A., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Farine, J., Ferrara, S., Feyzbakhsh, S., Fontaine, R., Fucarino, A., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hossl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Krucken, R., Kuchenkov, A., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D. C., Murray, K., Nakarmi, P., Natzke, C. R., Newby, R. J., Ning, Z., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rescia, S., Retiere, F., Richman, M., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J. -L., Wagenpfeil, M., Walent, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Yen, Y. -R., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract: Measurements of electron drift properties in liquid and gaseous xenon are reported. The electrons are generated by the photoelectric effect in a semi-transparent gold photocathode driven in transmission mode with a pulsed ultraviolet laser. The charges drift and diffuse in a small chamber at various electric fields and a fixed drift distance of 2.0 cm. At an electric field of 0.5 kV/cm, the measured drift velocities and corresponding temperature coefficients respectively are $1.97 \pm 0.04$ mm/$\mu$s and $(-0.69\pm0.05)$\%/K for liquid xenon, and $1.42 \pm 0.03$ mm/$\mu$s and $(+0.11\pm0.01)$\%/K for gaseous xenon at 1.5 bar. In addition, we measure longitudinal diffusion coefficients of $25.7 \pm 4.6$ cm$^2$/s and $149 \pm 23$ cm$^2$/s, for liquid and gas, respectively. The quantum efficiency of the gold photocathode is studied at the photon energy of 4.73 eV in liquid and gaseous xenon, and vacuum. These charge transport properties and the behavior of photocathodes in a xenon environment are important in designing and calibrating future large scale noble liquid detectors.
Published: 2019
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6. Reflectivity and PDE of VUV4 Hamamatsu SiPMs in Liquid Xenon

Author: Nakarmi, P., Ostrovskiy, I., Soma, A. K., Retiere, F., Kharusi, S. Al, Alfaris, M., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Blatchford, J., Breur, P. A., Brodsky, J. P., Brown, E., Brunner, T., Mamahit, S. Byrne, Caden, E., Cao, G. F., Cao, L., Chambers, C., Chana, B., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Croix, A. De St., Der Mesrobian-Kabakian, A., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Doria, L., Dragone, A., Echevers, J., Edaltafar, F., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fontaine, R., Fucarino, A., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hößle, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lv, P., MacLellan, R., Massacret, N., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D. C., Murray, K., Natzke, C. R., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, l J. L., Ortega, G. S., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rescia, S., Richman, M., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., VIII, K. Skarpaas, St-Hilaire, G., Stekhanov, r V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J. -L., Wagenpfeil, M., Wager, T., Walent, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract: Understanding reflective properties of materials and photodetection efficiency (PDE) of photodetectors is important for optimizing energy resolution and sensitivity of the next generation neutrinoless double beta decay, direct detection dark matter, and neutrino oscillation experiments that will use noble liquid gases, such as nEXO, DARWIN, DarkSide-20k, and DUNE. Little information is currently available about reflectivity and PDE in liquid noble gases, because such measurements are difficult to conduct in a cryogenic environment and at short enough wavelengths. Here we report a measurement of specular reflectivity and relative PDE of Hamamatsu VUV4 silicon photomultipliers (SiPMs) with 50 micrometer micro-cells conducted with xenon scintillation light (~175 nm) in liquid xenon. The specular reflectivity at 15 deg. incidence of three samples of VUV4 SiPMs is found to be 30.4+/-1.4%, 28.6+/-1.3%, and 28.0+/-1.3%, respectively. The PDE at normal incidence differs by +/-8% (standard deviation) among the three devices. The angular dependence of the reflectivity and PDE was also measured for one of the SiPMs. Both the reflectivity and PDE decrease as the angle of incidence increases. This is the first measurement of an angular dependence of PDE and reflectivity of a SiPM in liquid xenon., Comment: 21 pages, 15 figures, 6 tables. As accepted by JINST
Published: 2019
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7. Simulation of charge readout with segmented tiles in nEXO

Author: Li, Z., Cen, W. R., Robinson, A., Moore, D. C., Wen, L. J., Odian, A., Kharusi, S. Al, Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Brodsky, J. P., Brown, E., Brunner, T., Caden, E., Cao, G. F., Cao, L., Chambers, C., Chana, B., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Croix, A. De St., Der Mesrobian-Kabakian, A., DeVoe, R., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fontaine, R., Fucarino, A., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leach, K. G., Lenardo, B. G., Leonard, D. S., Li, G., Li, S., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Murray, K., Nakarmi, P., Natzke, C. R., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rescia, S., Retière, F., Richman, M., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J. -L., Wagenpfeil, M., Walent, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wichoski, U., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Yen, Y. -R., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract: nEXO is a proposed experiment to search for the neutrino-less double beta decay ($0\nu\beta\beta$) of $^{136}$Xe in a tonne-scale liquid xenon time projection chamber (TPC). The nEXO TPC will be equipped with charge collection tiles to form the anode. In this work, the charge reconstruction performance of this anode design is studied with a dedicated simulation package. A multi-variate method and a deep neural network are developed to distinguish simulated $0\nu\beta\beta$ signals from backgrounds arising from trace levels of natural radioactivity in the detector materials. These simulations indicate that the nEXO TPC with charge-collection tiles shows promising capability to discriminate the $0\nu\beta\beta$ signal from backgrounds. The estimated half-life sensitivity for $0\nu\beta\beta$ decay is improved by $\sim$20$~(32)\%$ with the multi-variate~(deep neural network) methods considered here, relative to the sensitivity estimated in the nEXO pre-conceptual design report.
Published: 2019
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8. Characterization of the Hamamatsu VUV4 MPPCs for nEXO

Author: Gallina, G., Giampa, P., Retiere, F., Kroeger, J., Zhang, G., Ward, M., Margetak, P., Lic, G., Tsang, T., Doria, L., Kharusi, S. Al, Alfaris, M., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Blatchford, J., Brodsky, J. P., Brown, E., Brunner, T., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Croix, A. De St., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Feyzbakhsh, S., Fontaine, R., Gautam, P., Giacomini, G., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hoßl, J., House, A., Hughes, M., Ito, Y., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Krucken, R., Kuchenkov, A., Kumar, K. S., Lana, Y., Larson, A., Lenardo, B. G., Leonarda, D. S., Lik, S., Li, Z., Licciardi, C., Linw, Y. H., Lv, P., MacLellan, R., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D. C., Murray, K., Nakarmi, P., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepkez, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rescia, S., Richman, M., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Vachon, F., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wagenpfeil, M., Walent, M., Wang, Q., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wu, S. X., Wu, W. H., Wu, X., Xia, Q., Yang, H., Yang, L., Yen, Y. -R., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: In this paper we report on the characterization of the Hamamatsu VUV4 (S/N: S13370-6152) Vacuum Ultra-Violet (VUV) sensitive Silicon Photo-Multipliers (SiPMs) as part of the development of a solution for the detection of liquid xenon scintillation light for the nEXO experiment. Various SiPM features, such as: dark noise, gain, correlated avalanches, direct crosstalk and Photon Detection Efficiency (PDE) were measured in a dedicated setup at TRIUMF. SiPMs were characterized in the range $163 \text{ } \text{K} \leq \text{T}\leq 233 \text{ } \text{K}$. At an over voltage of $3.1\pm0.2$ V and at $\text{T}=163 \text{ }\text{K}$ we report a number of Correlated Avalanches (CAs) per pulse in the $1 \upmu\text{s}$ interval following the trigger pulse of $0.161\pm0.005$. At the same settings the Dark-Noise (DN) rate is $0.137\pm0.002 \text{ Hz/mm}^{2}$. Both the number of CAs and the DN rate are within nEXO specifications. The PDE of the Hamamatsu VUV4 was measured for two different devices at $\text{T}=233 \text{ }\text{K}$ for a mean wavelength of $189\pm7\text{ nm}$. At $3.6\pm0.2$ V and $3.5\pm0.2$ V of over voltage we report a PDE of $13.4\pm2.6\text{ }\%$ and $11\pm2\%$, corresponding to a saturation PDE of $14.8\pm2.8\text{ }\%$ and $12.2\pm2.3\%$, respectively. Both values are well below the $24\text{ }\%$ saturation PDE advertised by Hamamatsu. More generally, the second device tested at $3.5\pm0.2$ V of over voltage is below the nEXO PDE requirement. The first one instead yields a PDE that is marginally close to meeting the nEXO specifications. This suggests that with modest improvements the Hamamatsu VUV4 MPPCs could be considered as an alternative to the FBK-LF SiPMs for the final design of the nEXO detector.
Published: 2019
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9. Study of Silicon Photomultiplier Performance in External Electric Fields

Author: Sun, X. L., Tolba, T., Cao, G. F., Lv, P., Wen, L. J., Odian, A., Vachon, F., Alamre, A., Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Côté, M., Craycraft, A., Cree, W., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Daughhetee, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fontaine, R., Fudenberg, D., Gallina, G., Giacomini, G., Gornea, R., Gratta, G., Hansen, E. V., Harris, D., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., Michel, T., Moe, M., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Sinclair, D., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Tarka, M., Todd, J., Totev, T. I., Tsang, R., Tsang, T., Veenstra, B., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Watkins, J., Weber, M., Wei, W., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors
Abstract: We report on the performance of silicon photomultiplier (SiPM) light sensors operating in electric field strength up to 30 kV/cm and at a temperature of 149K, relative to their performance in the absence of an external electric field. The SiPM devices used in this study show stable gain, photon detection efficiency, and rates of correlated pulses, when exposed to external fields, within the estimated uncertainties. No observable physical damage to the bulk or surface of the devices was caused by the exposure., Comment: 16 pages, 12 figures, 2 tables and two conferences (INPC2016 and TIPP2017)
Published: 2018
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10. Imaging individual barium atoms in solid xenon for barium tagging in nEXO

Author: Chambers, C., Walton, T., Fairbank, D., Craycraft, A., Yahne, D. R., Todd, J., Iverson, A., Fairbank, W., Alamare, A., Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Cree, W., Côté, M., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S. J., Daughhetee, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Farine, J., Feyzbakhsh, S., Fontaine, R., Fudenberg, D., Giacomini, G., Gornea, R., Gratta, G., Hansen, E. V., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Jamil, A., Jessiman, C., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., Michel, T., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Sinclair, D., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Tolba, T., Tsang, T. I. Totev. R., Tsang, T., Vachon, F., Veenstra, B., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract: The search for neutrinoless double beta decay probes the fundamental properties of neutrinos, including whether or not the neutrino and antineutrino are distinct. Double beta detectors are large and expensive, so background reduction is essential for extracting the highest sensitivity. The identification, or 'tagging', of the $^{136}$Ba daughter atom from double beta decay of $^{136}$Xe provides a technique for eliminating backgrounds in the nEXO neutrinoless double beta decay experiment. The tagging scheme studied in this work utilizes a cryogenic probe to trap the barium atom in solid xenon, where the barium atom is tagged via fluorescence imaging in the solid xenon matrix. Here we demonstrate imaging and counting of individual atoms of barium in solid xenon by scanning a focused laser across a solid xenon matrix deposited on a sapphire window. When the laser sits on an individual atom, the fluorescence persists for $\sim$30~s before dropping abruptly to the background level, a clear confirmation of one-atom imaging. No barium fluorescence persists following evaporation of a barium deposit to a limit of $\leq$0.16\%. This is the first time that single atoms have been imaged in solid noble element. It establishes the basic principle of a barium tagging technique for nEXO.
Published: 2018

11. VUV-sensitive Silicon Photomultipliers for Xenon Scintillation Light Detection in nEXO

Author: Jamil, A., Ziegler, T., Hufschmidt, P., Li, G., Lupin-Jimenez, L., Michel, T., Ostrovskiy, I., Retière, F., Schneider, J., Wagenpfeil, M., Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P., Beck, D., Belov, V., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Cree, W., Côté, M., Dalmasson, J., Daniels, T., Daugherty, S. J., Daughhetee, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Didberidze, T., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Feyzbakhsh, S., Fontaine, R., Fudenberg, D., Gallina, G., Giacomini, G., Gornea, R., Gratta, G., Hansen, E. V., Harris, D., Hasan, M., Heffner, M., Hoppe, E. W., House, A., Hughes, M., Hößl, J., Ito, Y., Iverson, A., Jewell, M., Jiang, X. S., Karelin, A., Kaufman, L. J., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Leonard, D. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., Mong, B., Moore, D., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Overman, C. T., Ortega, G. S., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schubert, A., Sinclair, D., Skarpaas, K., Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wang, Q., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., and Zhou, Y.
Subjects: Physics - Instrumentation and Detectors
Abstract: Future tonne-scale liquefied noble gas detectors depend on efficient light detection in the VUV range. In the past years Silicon Photomultipliers (SiPMs) have emerged as a valid alternative to standard photomultiplier tubes or large area avalanche photodiodes. The next generation double beta decay experiment, nEXO, with a 5 tonne liquid xenon time projection chamber, will use SiPMs for detecting the $178\,\text{nm}$ xenon scintillation light, in order to achieve an energy resolution of $\sigma / Q_{\beta\beta} = 1\, \%$. This paper presents recent measurements of the VUV-HD generation SiPMs from Fondazione Bruno Kessler in two complementary setups. It includes measurements of the photon detection efficiency with gaseous xenon scintillation light in a vacuum setup and dark measurements in a dry nitrogen gas setup. We report improved photon detection efficiency at $175\,\text{nm}$ compared to previous generation devices, that would meet the criteria of nEXO. Furthermore, we present the projected nEXO detector light collection and energy resolution that could be achieved by using these SiPMs., Comment: 11 pages, 13 figures, 2 tables
Published: 2018
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12. nEXO Pre-Conceptual Design Report

Author: nEXO Collaboration, Kharusi, S. Al, Alamre, A., Albert, J. B., Alfaris, M., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Conley, R., Coon, M., Côté, M., Craycraft, A., Cree, W., Dalmasson, J., Daniels, T., Danovitch, D., Darroch, L., Daugherty, S. J., Daughhetee, J., DeVoe, R., Delaquis, S., Der Mesrobian-Kabakian, A., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fierlinger, P., Fontaine, R., Fudenberg, D., Gallina, G., Giacomini, G., Gornea, R., Gratta, G., Haller, G., Hansen, E. V., Harris, D., Hasi, J., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Jiang, X. S., Karelin, A., Kaufman, L. J., Kenney, C., Killick, R., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Lewis, C. M., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., MacLellan, R., McFarlane, K., Michel, T., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Nguyen, T., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Patel, M., Peña-Perez, A., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Segal, J., Skarpaas~VIII, K., Soma, A. K., Spitaels, K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veenstra, B., Veeraraghavan, V., Visser, G., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract: The projected performance and detector configuration of nEXO are described in this pre-Conceptual Design Report (pCDR). nEXO is a tonne-scale neutrinoless double beta ($0\nu\beta\beta$) decay search in $^{136}$Xe, based on the ultra-low background liquid xenon technology validated by EXO-200. With $\simeq$ 5000 kg of xenon enriched to 90% in the isotope 136, nEXO has a projected half-life sensitivity of approximately $10^{28}$ years. This represents an improvement in sensitivity of about two orders of magnitude with respect to current results. Based on the experience gained from EXO-200 and the effectiveness of xenon purification techniques, we expect the background to be dominated by external sources of radiation. The sensitivity increase is, therefore, entirely derived from the increase of active mass in a monolithic and homogeneous detector, along with some technical advances perfected in the course of a dedicated R&D program. Hence the risk which is inherent to the construction of a large, ultra-low background detector is reduced, as the intrinsic radioactive contamination requirements are generally not beyond those demonstrated with the present generation $0\nu\beta\beta$ decay experiments. Indeed, most of the required materials have been already assayed or reasonable estimates of their properties are at hand. The details described herein represent the base design of the detector configuration as of early 2018. Where potential design improvements are possible, alternatives are discussed. This design for nEXO presents a compelling path towards a next generation search for $0\nu\beta\beta$, with a substantial possibility to discover physics beyond the Standard Model., Comment: 182 pages, minor revisions
Published: 2018

13. Imaging individual barium atoms in solid xenon for barium tagging in nEXO

Author: Chambers, C, Walton, T, Fairbank, D, Craycraft, A, Yahne, DR, Todd, J, Iverson, A, Fairbank, W, Alamare, A, Albert, JB, Anton, G, Arnquist, IJ, Badhrees, I, Barbeau, PS, Beck, D, Belov, V, Bhatta, T, Bourque, F, Brodsky, JP, Brown, E, Brunner, T, Burenkov, A, Cao, GF, Cao, L, Cen, WR, Charlebois, SA, Chiu, M, Cleveland, B, Coon, M, Cree, W, Côté, M, Dalmasson, J, Daniels, T, Darroch, L, Daugherty, SJ, Daughhetee, J, Delaquis, S, Mesrobian-Kabakian, A Der, DeVoe, R, Dilling, J, Ding, YY, Dolinski, MJ, Dragone, A, Echevers, J, Fabris, L, Farine, J, Feyzbakhsh, S, Fontaine, R, Fudenberg, D, Giacomini, G, Gornea, R, Gratta, G, Hansen, EV, Heffner, M, Hoppe, EW, Hößl, J, House, A, Hufschmidt, P, Hughes, M, Ito, Y, Jamil, A, Jessiman, C, Jewell, MJ, Jiang, XS, Karelin, A, Kaufman, LJ, Kodroff, D, Koffas, T, Kravitz, S, Krücken, R, Kuchenkov, A, Kumar, KS, Lan, Y, Larson, A, Leonard, DS, Li, G, Li, S, Li, Z, Licciardi, C, Lin, YH, Lv, P, MacLellan, R, Michel, T, Mong, B, Moore, DC, Murray, K, Newby, RJ, Ning, Z, Njoya, O, Nolet, F, Nusair, O, Odgers, K, Odian, A, Oriunno, M, Orrell, JL, Ortega, GS, Ostrovskiy, I, Overman, CT, Parent, S, and Piepke, A
Subjects: physics.ins-det, nucl-ex, Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, nEXO Collaboration, General Science & Technology
Abstract: The search for neutrinoless double beta decay probes the fundamentalproperties of neutrinos, including whether or not the neutrino and antineutrinoare distinct. Double beta detectors are large and expensive, so backgroundreduction is essential for extracting the highest sensitivity. Theidentification, or 'tagging', of the $^{136}$Ba daughter atom from double betadecay of $^{136}$Xe provides a technique for eliminating backgrounds in thenEXO neutrinoless double beta decay experiment. The tagging scheme studied inthis work utilizes a cryogenic probe to trap the barium atom in solid xenon,where the barium atom is tagged via fluorescence imaging in the solid xenonmatrix. Here we demonstrate imaging and counting of individual atoms of bariumin solid xenon by scanning a focused laser across a solid xenon matrixdeposited on a sapphire window. When the laser sits on an individual atom, thefluorescence persists for $\sim$30~s before dropping abruptly to the backgroundlevel, a clear confirmation of one-atom imaging. No barium fluorescencepersists following evaporation of a barium deposit to a limit of $\leq$0.16\%.This is the first time that single atoms have been imaged in solid nobleelement. It establishes the basic principle of a barium tagging technique fornEXO.
Published: 2019

14. Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double beta decay

Author: nEXO Collaboration, Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Côté, M., Craycraft, A., Cree, W., Dalmasson, J., Daniels, T., Daugherty, S. J., Daughhetee, J., DeVoe, R., Delaquis, S., Der Mesrobian-Kabakian, A., Didberidze, T., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Fabris, L., Fairbank, W., Farine, J., Feyzbakhsh, S., Fontaine, R., Fudenberg, D., Giacomini, G., Gornea, R., Graham, K., Gratta, G., Hansen, E. V., Harris, D., Hasan, M., Heffner, M., Hoppe, E. W., Hößl, J., House, A., Hufschmidt, P., Hughes, M., Ito, Y., Iverson, A., Jamil, A., Jewell, M. J., Jiang, X. S., Johnson, T. N., Johnston, S., Karelin, A., Kaufman, L. J., Killick, R., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Leonard, D. S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., Michel, T., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Piepke, A., Pocar, A., Pratte, J. -F., Qiu, D., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Sinclair, D., VIII, K. Skarpaas, Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Visser, G., Vogel, P., Vuilleumier, J. -L., Wagenpfeil, M., Wang, Q., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Yang, L., Yen, Y. -R., Zeldovich, O., Zettlemoyer, J., Zhang, X., Zhao, J., Zhou, Y., and Ziegler, T.
Subjects: Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract: The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double beta ($0\nu\beta\beta$) decay in $^{136}$Xe with a target half-life sensitivity of approximately $10^{28}$ years using $5\times10^3$ kg of isotopically enriched liquid-xenon in a time projection chamber. This improvement of two orders of magnitude in sensitivity over current limits is obtained by a significant increase of the $^{136}$Xe mass, the monolithic and homogeneous configuration of the active medium, and the multi-parameter measurements of the interactions enabled by the time projection chamber. The detector concept and anticipated performance are presented based upon demonstrated realizable background rates., Comment: v2 as published
Published: 2017
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15. Characterization of an Ionization Readout Tile for nEXO

Author: nEXO Collaboration, Jewell, M., Schubert, A., Cen, W. R., Dalmasson, J., DeVoe, R., Fabris, L., Gratta, G., Jamil, A., Li, G., Odian, A., Patel, M., Pocar, A., Qiu, D., Wang, Q., Wen, L. J., Albert, J. B., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P., Beck, D., Belov, V., Bourque, F., Brodsky, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cao, L., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Cree, W., Côté, M., Daniels, T., Daugherty, S. J., Daughhetee, J., Delaquis, S., Der Mesrobian-Kabakian, A., Didberidze, T., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Fairbank, W., Farine, J., Feyzbakhsh, S., Fontaine, R., Fudenberg, D., Giacomini, G., Gornea, R., Hansen, E. V., Harris, D., Hasan, M., Heffner, M., Hoppe, E. W., House, A., Hufschmidt, P., Hughes, M., Hößl, J., Ito, Y., Iverson, A., Jiang, X. S., Johnston, S., Karelin, A., Kaufman, L. J., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Leonard, D. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., Michel, T., Mong, B., Moore, D., Murray, K., Newby, R. J., Ning, Z., Njoya, O., Nolet, F., Odgers, K., Oriunno, M., Orrell, J. L., Ostrovskiy, I., Overman, C. T., Ortega, G. S., Parent, S., Piepke, A., Pratte, J. -F., Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retiere, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Sinclair, D., Skarpaas, K., Soma, A. K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Visser, G., Vuilleumier, J. -L., Wagenpfeil, M., Weber, M., Wei, W., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xuan, Z., Yang, L., Yayun, D., Yen, Y. -R., Zeldovich, O., Zhang, X., Zhao, J., Zhe, N., Zhou, Y., and Ziegler, T.
Subjects: Physics - Instrumentation and Detectors
Abstract: A new design for the anode of a time projection chamber, consisting of a charge-detecting "tile", is investigated for use in large scale liquid xenon detectors. The tile is produced by depositing 60 orthogonal metal charge-collecting strips, 3~mm wide, on a 10~\si{\cm} $\times$ 10~\si{\cm} fused-silica wafer. These charge tiles may be employed by large detectors, such as the proposed tonne-scale nEXO experiment to search for neutrinoless double-beta decay. Modular by design, an array of tiles can cover a sizable area. The width of each strip is small compared to the size of the tile, so a Frisch grid is not required. A grid-less, tiled anode design is beneficial for an experiment such as nEXO, where a wire tensioning support structure and Frisch grid might contribute radioactive backgrounds and would have to be designed to accommodate cycling to cryogenic temperatures. The segmented anode also reduces some degeneracies in signal reconstruction that arise in large-area crossed-wire time projection chambers. A prototype tile was tested in a cell containing liquid xenon. Very good agreement is achieved between the measured ionization spectrum of a $^{207}$Bi source and simulations that include the microphysics of recombination in xenon and a detailed modeling of the electrostatic field of the detector. An energy resolution $\sigma/E$=5.5\% is observed at 570~\si{keV}, comparable to the best intrinsic ionization-only resolution reported in literature for liquid xenon at 936~V/\si{cm}., Comment: 18 pages, 13 figures, as published
Published: 2017
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16. Event reconstruction in a liquid xenon Time Projection Chamber with an optically-open field cage

Author: Stiegler, T., Sangiorgio, S., Brodsky, J.P., Heffner, M., Kharusi, S. Al, Anton, G., Arnquist, I.J., Badhrees, I., Barbeau, P.S., Beck, D., Belov, V., Bhatta, T., Bolotnikov, A., Breur, P.A., Brown, E., Brunner, T., Caden, E., Cao, G.F., Cao, L., Chambers, C., Chana, B., Charlebois, S.A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., De St. Croix, A., Mesrobian-Kabakian, A. Der, Deslandes, K., DeVoe, R., Di Vacri, M.L., Dilling, J., Ding, Y.Y., Dolinski, M.J., Dragone, A., Echevers, J., Edaltafar, F., Elbeltagi, M., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E.V., Hoppe, E.W., Hößl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M.J., Jiang, X.S., Karelin, A., Kaufman, L.J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K.S., Lan, Y., Larson, A., Leach, K.G., Lenardo, B.G., Leonard, D.S., Li, G., Li, S., Li, Z., Licciardi, C., Lv, P., MacLellan, R., Massacret, N., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D.C., Murray, K., Nakarmi, P., Natzke, C.R., Newby, R.J., Ni, K., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J.L., Ortega, G.S., Ostrovskiy, I., Overman, C.T., Parent, S., Piepke, A., Pocar, A., Pratte, J.-F., Radeka, V., Raguzin, E., Rasiwala, H., Rescia, S., Retière, F., Richman, M., Robinson, A., Rossignol, T., Rowson, P.C., Roy, N., Saldanha, R., Skarpaas, K., VIII, Soma, A.K., St-Hilaire, G., Stekhanov, V., Sun, X.L., Tarka, M., Thibado, S., Tidball, A., Todd, J., Totev, T.I., Tsang, R., Tsang, T., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J.-L., Wagenpfeil, M., Wager, T., Walent, M., Wang, Q., Wei, W., Wen, L.J., Wichoski, U., Worcester, M., Wu, S.X., Wu, W.H., Wu, X., Xia, Q., Yang, H., Yang, L., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Published: 2021
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17. Measurements of electron transport in liquid and gas Xenon using a laser-driven photocathode

Author: Njoya, O., Tsang, T., Tarka, M., Fairbank, W., Kumar, K.S., Rao, T., Wager, T., Kharusi, S. Al, Anton, G., Arnquist, I.J., Badhrees, I., Barbeau, P.S., Beck, D., Belov, V., Bhatta, T., Brodsky, J.P., Brown, E., Brunner, T., Caden, E., Cao, G.F., Cao, L., Cen, W.R., Chambers, C., Chana, B., Charlebois, S.A., Chiu, M., Cleveland, B., Coon, M., Craycraft, A., Dalmasson, J., Daniels, T., Darroch, L., Daugherty, S.J., De St. Croix, A., Der Mesrobian-Kabakian, A., DeVoe, R., Di Vacri, M.L., Dilling, J., Ding, Y.Y., Dolinski, M.J., Dragone, A., Echevers, J., Elbeltagi, M., Fabris, L., Fairbank, D., Farine, J., Ferrara, S., Feyzbakhsh, S., Fontaine, R., Fucarino, A., Gallina, G., Gautam, P., Giacomini, G., Goeldi, D., Gornea, R., Gratta, G., Hansen, E.V., Heffner, M., Hoppe, E.W., Hößl, J., House, A., Hughes, M., Iverson, A., Jamil, A., Jewell, M.J., Jiang, X.S., Karelin, A., Kaufman, L.J., Kodroff, D., Koffas, T., Krücken, R., Kuchenkov, A., Lan, Y., Larson, A., Leach, K.G., Lenardo, B.G., Leonard, D.S., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y.H., Lv, P., MacLellan, R., McElroy, T., Medina-Peregrina, M., Michel, T., Mong, B., Moore, D.C., Murray, K., Nakarmi, P., Natzke, C.R., Newby, R.J., Ning, Z., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J.L., Ortega, G.S., Ostrovskiy, I., Overman, C.T., Parent, S., Piepke, A., Pocar, A., Pratte, J.-F., Radeka, V., Raguzin, E., Rescia, S., Retière, F., Richman, M., Robinson, A., Rossignol, T., Rowson, P.C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., Skarpaas, K., VIII, Soma, A.K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X.L., Todd, J., Tolba, T., Totev, T.I., Tsang, R., Vachon, F., Veeraraghavan, V., Viel, S., Visser, G., Vivo-Vilches, C., Vuilleumier, J.-L., Wagenpfeil, M., Walent, M., Wang, Q., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L.J., Wichoski, U., Wu, S.X., Wu, W.H., Wu, X., Xia, Q., Yang, H., Yang, L., Yen, Y.-R., Zeldovich, O., Zhao, J., Zhou, Y., and Ziegler, T.
Published: 2020
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18. Novel Cascaded Ring Oscillator Vernier based TDC Architecture with a Feedthrough Reference Oscillator

Author: Scarpellini, R., primary, Théberges-Dupuis, G., additional, Roy, N., additional, Rossignol, T., additional, St-Jean, N., additional, Nolet, F., additional, Fabris, L., additional, Charlebois, S. A., additional, and Pratte, J.-F., additional
Published: 2023
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19. nEXO: neutrinoless double beta decay search beyond 1028 year half-life sensitivity

Author: Adhikari, G, primary, Al Kharusi, S, additional, Angelico, E, additional, Anton, G, additional, Arnquist, I J, additional, Badhrees, I, additional, Bane, J, additional, Belov, V, additional, Bernard, E P, additional, Bhatta, T, additional, Bolotnikov, A, additional, Breur, P A, additional, Brodsky, J P, additional, Brown, E, additional, Brunner, T, additional, Caden, E, additional, Cao, G F, additional, Cao, L, additional, Chambers, C, additional, Chana, B, additional, Charlebois, S A, additional, Chernyak, D, additional, Chiu, M, additional, Cleveland, B, additional, Collister, R, additional, Czyz, S A, additional, Dalmasson, J, additional, Daniels, T, additional, Darroch, L, additional, DeVoe, R, additional, Di Vacri, M L, additional, Dilling, J, additional, Ding, Y Y, additional, Dolgolenko, A, additional, Dolinski, M J, additional, Dragone, A, additional, Echevers, J, additional, Elbeltagi, M, additional, Fabris, L, additional, Fairbank, D, additional, Fairbank, W, additional, Farine, J, additional, Ferrara, S, additional, Feyzbakhsh, S, additional, Fu, Y S, additional, Gallina, G, additional, Gautam, P, additional, Giacomini, G, additional, Gillis, W, additional, Gingras, C, additional, Goeldi, D, additional, Gornea, R, additional, Gratta, G, additional, Hardy, C A, additional, Harouaka, K, additional, Heffner, M, additional, Hoppe, E W, additional, House, A, additional, Iverson, A, additional, Jamil, A, additional, Jewell, M, additional, Jiang, X S, additional, Karelin, A, additional, Kaufman, L J, additional, Kotov, I, additional, Krücken, R, additional, Kuchenkov, A, additional, Kumar, K S, additional, Lan, Y, additional, Larson, A, additional, Leach, K G, additional, Lenardo, B G, additional, Leonard, D S, additional, Li, G, additional, Li, S, additional, Li, Z, additional, Licciardi, C, additional, Lindsay, R, additional, MacLellan, R, additional, Mahtab, M, additional, Martel-Dion, P, additional, Masbou, J, additional, Massacret, N, additional, McElroy, T, additional, McMichael, K, additional, Peregrina, M Medina, additional, Michel, T, additional, Mong, B, additional, Moore, D C, additional, Murray, K, additional, Nattress, J, additional, Natzke, C R, additional, Newby, R J, additional, Ni, K, additional, Nolet, F, additional, Nusair, O, additional, Ondze, J C Nzobadila, additional, Odgers, K, additional, Odian, A, additional, Orrell, J L, additional, Ortega, G S, additional, Overman, C T, additional, Parent, S, additional, Perna, A, additional, Piepke, A, additional, Pocar, A, additional, Pratte, J-F, additional, Priel, N, additional, Radeka, V, additional, Raguzin, E, additional, Ramonnye, G J, additional, Rao, T, additional, Rasiwala, H, additional, Rescia, S, additional, Retière, F, additional, Ringuette, J, additional, Riot, V, additional, Rossignol, T, additional, Rowson, P C, additional, Roy, N, additional, Saldanha, R, additional, Sangiorgio, S, additional, Shang, X, additional, Soma, A K, additional, Spadoni, F, additional, Stekhanov, V, additional, Sun, X L, additional, Tarka, M, additional, Thibado, S, additional, Tidball, A, additional, Todd, J, additional, Totev, T, additional, Triambak, S, additional, Tsang, R H M, additional, Tsang, T, additional, Vachon, F, additional, Veeraraghavan, V, additional, Viel, S, additional, Vivo-Vilches, C, additional, Vogel, P, additional, Vuilleumier, J-L, additional, Wagenpfeil, M, additional, Wager, T, additional, Walent, M, additional, Wamba, K, additional, Wang, Q, additional, Wei, W, additional, Wen, L J, additional, Wichoski, U, additional, Wilde, S, additional, Worcester, M, additional, Wu, S X, additional, Wu, W H, additional, Wu, X, additional, Xia, Q, additional, Yan, W, additional, Yang, H, additional, Yang, L, additional, Zeldovich, O, additional, Zhao, J, additional, and Ziegler, T, additional
Published: 2021
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20. Reflectivity of VUV-sensitive silicon photomultipliers in liquid Xenon

Author: Wagenpfeil, M., primary, Ziegler, T., additional, Schneider, J., additional, Fieguth, A., additional, Murra, M., additional, Schulte, D., additional, Althueser, L., additional, Huhmann, C., additional, Weinheimer, C., additional, Michel, T., additional, Anton, G., additional, Adhikari, G., additional, Al Kharusi, S., additional, Angelico, E., additional, Arnquist, I.J., additional, Badhrees, I., additional, Bane, J., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Bolotnikov, A., additional, Breur, P.A., additional, Brodsky, J.P., additional, Brown, E., additional, Brunner, T., additional, Caden, E., additional, Cao, G.F., additional, Chambers, C., additional, Chana, B., additional, Charlebois, S.A., additional, Chernyak, D., additional, Chiu, M., additional, Cleveland, B., additional, Craycraft, A., additional, Daniels, T., additional, Darroch, L., additional, Der Mesrobian-Kabakian, A., additional, de St. Croix, A., additional, Deslandes, K., additional, DeVoe, R., additional, Di Vacri, M.L., additional, Dolinski, M.J., additional, Echevers, J., additional, Elbeltagi, M., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Ferrara, S., additional, Feyzbakhsh, S., additional, Gallina, G., additional, Gautam, P., additional, Giacomini, G., additional, Gingras, C., additional, Goeldi, D., additional, Gorham, A., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E.V., additional, Hardy, C.A., additional, Harouaka, K., additional, Heffner, M., additional, Hoppe, E.W., additional, House, A., additional, Hughes, M., additional, Iverson, A., additional, Jamil, A., additional, Jewell, M., additional, Karelin, A., additional, Kaufman, L.J., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Larson, A., additional, Leach, K.G., additional, Leonard, D.S., additional, Li, G., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lindsay, R., additional, MacLellan, R., additional, Martel-Dion, P., additional, Massacret, N., additional, McElroy, T., additional, Medina Peregrina, M., additional, Mong, B., additional, Moore, D.C., additional, Murray, K., additional, Nattress, J., additional, Natzke, C.R., additional, Newby, R.J., additional, Nolet, F., additional, Nusair, O., additional, Nzobadila Ondze, J.C., additional, Odgers, K., additional, Odian, A., additional, Orrell, J.L., additional, Ortega, G.S., additional, Ostrovskiy, I., additional, Overman, C.T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Raguzin, E., additional, Ramonnye, G.J., additional, Rasiwala, H., additional, Rescia, S., additional, Retière, F., additional, Richard, C., additional, Richman, M., additional, Ringuette, J., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Saldanha, R., additional, Sangiorgio, S., additional, Soma, A.K., additional, Spadoni, F., additional, Stekhanov, V., additional, Stiegler, T., additional, Tarka, M., additional, Thibado, S., additional, Tidball, A., additional, Todd, J., additional, Totev, T., additional, Triambak, S., additional, Tsang, R., additional, Vachon, F., additional, Veeraraghavan, V., additional, Viel, S., additional, Vivo-Vilches, C., additional, Walent, M., additional, Wichoski, U., additional, Worcester, M., additional, Wu, S.X., additional, Xia, Q., additional, Yan, W., additional, Yang, L., additional, and Zeldovich, O., additional
Published: 2021
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21. Reflectance of Silicon Photomultipliers at Vacuum Ultraviolet Wavelengths

Author: Lv, P., primary, Cao, G. F., additional, Wen, L. J., additional, Kharusi, S. Al, additional, Anton, G., additional, Arnquist, I. J., additional, Badhrees, I., additional, Barbeau, P. S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Breur, P. A., additional, Brodsky, J. P., additional, Brown, E., additional, Brunner, T., additional, Mamahit, S. Byrne, additional, Caden, E., additional, Cao, L., additional, Chambers, C., additional, Chana, B., additional, Charlebois, S. A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Craycraft, A., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, St. Croix, A. De, additional, Mesrobian-Kabakian, A. Der, additional, Deslandes, K., additional, DeVoe, R., additional, Vacri, M. L. Di, additional, Dilling, J., additional, Ding, Y. Y., additional, Dolinski, M. J., additional, Doria, L., additional, Dragone, A., additional, Echevers, J., additional, Edaltafar, F., additional, Elbeltagi, M., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Ferrara, S., additional, Feyzbakhsh, S., additional, Fucarino, A., additional, Gallina, G., additional, Gautam, P., additional, Giacomini, G., additional, Goeldi, D., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E. V., additional, Heffner, M., additional, Hoppe, E. W., additional, Hobl, J., additional, House, A., additional, Hughes, M., additional, Iverson, A., additional, Jamil, A., additional, Jewell, M. J., additional, Jiang, X. S., additional, Karelin, A., additional, Kaufman, L. J., additional, Koffas, T., additional, Krucken, R., additional, Kuchenkov, A., additional, Kumar, K. S., additional, Lan, Y., additional, Larson, A., additional, Leach, K. G., additional, Lenardo, B. G., additional, Leonard, D. S., additional, Li, G., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, MacLellan, R., additional, Massacret, N., additional, McElroy, T., additional, Medina-Peregrina, M., additional, Michel, T., additional, Mong, B., additional, Moore, D. C., additional, Murray, K., additional, Nakarmi, P., additional, Natzke, C. R., additional, Newby, R. J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Odian, A., additional, Oriunno, M., additional, Orrell, J. L., additional, Ortega, G. S., additional, Ostrovskiy, I., additional, Overman, C. T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J. -F., additional, Radeka, V., additional, Raguzin, E., additional, Rescia, S., additional, Retiere, F., additional, Richman, M., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P. C., additional, Roy, N., additional, Runge, J., additional, Saldanha, R., additional, Sangiorgio, S., additional, Skarpaas, K., additional, Soma, A. K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X. L., additional, Tarka, M., additional, Todd, J., additional, Totev, T. I., additional, Tsang, R., additional, Tsang, T., additional, Vachon, F., additional, Veeraraghavan, V., additional, Viel, S., additional, Visser, G., additional, Vivo-Vilches, C., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Wager, T., additional, Walent, M., additional, Wang, Q., additional, Watkins, J., additional, Wei, W., additional, Wichoski, U., additional, Wu, S. X., additional, Wu, W. H., additional, Wu, X., additional, Xia, Q., additional, Yang, H., additional, Yang, L., additional, Zeldovich, O., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2020
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22. Synchronization in reaction–diffusion systems with multiple pacemakers

Author: Nolet, F. E., primary, Rombouts, J., additional, and Gelens, L., additional
Published: 2020
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23. 22 μW, 5.1 ps LSB, 5.5 ps RMS jitter Vernier time‐to‐digital converter in CMOS 65 nm for single photon avalanche diode array

Author: Nolet, F., primary, Roy, N., additional, Carrier, S., additional, Bouchard, J., additional, Fontaine, R., additional, Charlebois, S.A., additional, and Pratte, J.‐F., additional
Published: 2020
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24. Reflectivity and PDE of VUV4 Hamamatsu SiPMs in liquid xenon

Author: Nakarmi, P., primary, Ostrovskiy, I., additional, Soma, A.K., additional, Retière, F., additional, Kharusi, S. Al, additional, Alfaris, M., additional, Anton, G., additional, Arnquist, I.J., additional, Badhrees, I., additional, Barbeau, P.S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Blatchford, J., additional, Breur, P.A., additional, Brodsky, J.P., additional, Brown, E., additional, Brunner, T., additional, Mamahit, S. Byrne, additional, Caden, E., additional, Cao, G.F., additional, Cao, L., additional, Chambers, C., additional, Chana, B., additional, Charlebois, S.A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Craycraft, A., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, Croix, A. De St., additional, Mesrobian-Kabakian, A. Der, additional, DeVoe, R., additional, Vacri, M.L. Di, additional, Dilling, J., additional, Ding, Y.Y., additional, Dolinski, M.J., additional, Doria, L., additional, Dragone, A., additional, Echevers, J., additional, Edaltafar, F., additional, Elbeltagi, M., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Ferrara, S., additional, Feyzbakhsh, S., additional, Fontaine, R., additional, Fucarino, A., additional, Gallina, G., additional, Gautam, P., additional, Giacomini, G., additional, Goeldi, D., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E.V., additional, Heffner, M., additional, Hoppe, E.W., additional, Hößl, J., additional, House, A., additional, Hughes, M., additional, Iverson, A., additional, Jamil, A., additional, Jewell, M.J., additional, Jiang, X.S., additional, Karelin, A., additional, Kaufman, L.J., additional, Koffas, T., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Larson, A., additional, Leach, K.G., additional, Lenardo, B.G., additional, Leonard, D.S., additional, Li, G., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lv, P., additional, MacLellan, R., additional, Massacret, N., additional, McElroy, T., additional, Medina-Peregrina, M., additional, Michel, T., additional, Mong, B., additional, Moore, D.C., additional, Murray, K., additional, Natzke, C.R., additional, Newby, R.J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Odian, A., additional, Oriunno, M., additional, Orrell, J.L., additional, Ortega, G.S., additional, Overman, C.T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Radeka, V., additional, Raguzin, E., additional, Rescia, S., additional, Richman, M., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Runge, J., additional, Saldanha, R., additional, Sangiorgio, S., additional, VIII, K. Skarpaas, additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X.L., additional, Tarka, M., additional, Todd, J., additional, Totev, T.I., additional, Tsang, R., additional, Tsang, T., additional, Vachon, F., additional, Veeraraghavan, V., additional, Viel, S., additional, Visser, G., additional, Vivo-Vilches, C., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Wager, T., additional, Walent, M., additional, Wang, Q., additional, Ward, M., additional, Watkins, J., additional, Weber, M., additional, Wei, W., additional, Wen, L.J., additional, Wichoski, U., additional, Wu, S.X., additional, Wu, W.H., additional, Wu, X., additional, Xia, Q., additional, Yang, H., additional, Yang, L., additional, Zeldovich, O., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2020
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25. Characterization of the Hamamatsu VUV4 MPPCs for nEXO

Author: Gallina, G., primary, Giampa, P., additional, Retière, F., additional, Kroeger, J., additional, Zhang, G., additional, Ward, M., additional, Margetak, P., additional, Li, G., additional, Tsang, T., additional, Doria, L., additional, Al Kharusi, S., additional, Alfaris, M., additional, Anton, G., additional, Arnquist, I.J., additional, Badhrees, I., additional, Barbeau, P.S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Blatchford, J., additional, Brodsky, J.P., additional, Brown, E., additional, Brunner, T., additional, Cao, G.F., additional, Cao, L., additional, Cen, W.R., additional, Chambers, C., additional, Charlebois, S.A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Craycraft, A., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, Daugherty, S.J., additional, De St. Croix, A., additional, Der Mesrobian-Kabakian, A., additional, DeVoe, R., additional, Dilling, J., additional, Ding, Y.Y., additional, Dolinski, M.J., additional, Dragone, A., additional, Echevers, J., additional, Elbeltagi, M., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Feyzbakhsh, S., additional, Fontaine, R., additional, Gautam, P., additional, Giacomini, G., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E.V., additional, Heffner, M., additional, Hoppe, E.W., additional, Hößl, J., additional, House, A., additional, Hughes, M., additional, Ito, Y., additional, Iverson, A., additional, Jamil, A., additional, Jewell, M.J., additional, Jiang, X.S., additional, Karelin, A., additional, Kaufman, L.J., additional, Kodroff, D., additional, Koffas, T., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Larson, A., additional, Lenardo, B.G., additional, Leonard, D.S., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lin, Y.H., additional, Lv, P., additional, MacLellan, R., additional, McElroy, T., additional, Medina-Peregrina, M., additional, Michel, T., additional, Mong, B., additional, Moore, D.C., additional, Murray, K., additional, Nakarmi, P., additional, Newby, R.J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Odian, A., additional, Oriunno, M., additional, Orrell, J.L., additional, Ortega, G.S., additional, Ostrovskiy, I., additional, Overman, C.T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Qiu, D., additional, Radeka, V., additional, Raguzin, E., additional, Rescia, S., additional, Richman, M., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Saldanha, R., additional, Sangiorgio, S., additional, Skarpaas, K., additional, Soma, A.K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X.L., additional, Tarka, M., additional, Todd, J., additional, Tolba, T., additional, Totev, T.I., additional, Tsang, R., additional, Vachon, F., additional, Veeraraghavan, V., additional, Visser, G., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Walent, M., additional, Wang, Q., additional, Watkins, J., additional, Weber, M., additional, Wei, W., additional, Wen, L.J., additional, Wichoski, U., additional, Wu, S.X., additional, Wu, W.H., additional, Wu, X., additional, Xia, Q., additional, Yang, H., additional, Yang, L., additional, Yen, Y.-R., additional, Zeldovich, O., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2019
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26. Simulation of charge readout with segmented tiles in nEXO

Author: Li, Z., primary, Cen, W.R., additional, Robinson, A., additional, Moore, D.C., additional, Wen, L.J., additional, Odian, A., additional, Kharusi, S. Al, additional, Anton, G., additional, Arnquist, I.J., additional, Badhrees, I., additional, Barbeau, P.S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Brodsky, J.P., additional, Brown, E., additional, Brunner, T., additional, Caden, E., additional, Cao, G.F., additional, Cao, L., additional, Chambers, C., additional, Chana, B., additional, Charlebois, S.A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Craycraft, A., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, Daugherty, S.J., additional, Croix, A. De St., additional, Mesrobian-Kabakian, A. Der, additional, DeVoe, R., additional, Vacri, M.L. Di, additional, Dilling, J., additional, Ding, Y.Y., additional, Dolinski, M.J., additional, Dragone, A., additional, Echevers, J., additional, Elbeltagi, M., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Ferrara, S., additional, Feyzbakhsh, S., additional, Fontaine, R., additional, Fucarino, A., additional, Gallina, G., additional, Gautam, P., additional, Giacomini, G., additional, Goeldi, D., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E.V., additional, Heffner, M., additional, Hoppe, E.W., additional, Hößl, J., additional, House, A., additional, Hughes, M., additional, Iverson, A., additional, Jamil, A., additional, Jewell, M.J., additional, Jiang, X.S., additional, Karelin, A., additional, Kaufman, L.J., additional, Kodroff, D., additional, Koffas, T., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Larson, A., additional, Leach, K.G., additional, Lenardo, B.G., additional, Leonard, D.S., additional, Li, G., additional, Li, S., additional, Licciardi, C., additional, Lin, Y.H., additional, Lv, P., additional, MacLellan, R., additional, McElroy, T., additional, Medina-Peregrina, M., additional, Michel, T., additional, Mong, B., additional, Murray, K., additional, Nakarmi, P., additional, Natzke, C.R., additional, Newby, R.J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Oriunno, M., additional, Orrell, J.L., additional, Ortega, G.S., additional, Ostrovskiy, I., additional, Overman, C.T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Radeka, V., additional, Raguzin, E., additional, Rescia, S., additional, Retière, F., additional, Richman, M., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Runge, J., additional, Saldanha, R., additional, Sangiorgio, S., additional, VIII, K. Skarpaas, additional, Soma, A.K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X.L., additional, Tarka, M., additional, Todd, J., additional, Tolba, T., additional, Totev, T.I., additional, Tsang, R., additional, Tsang, T., additional, Vachon, F., additional, Veeraraghavan, V., additional, Viel, S., additional, Visser, G., additional, Vivo-Vilches, C., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Walent, M., additional, Wang, Q., additional, Ward, M., additional, Watkins, J., additional, Weber, M., additional, Wei, W., additional, Wichoski, U., additional, Wu, S.X., additional, Wu, W.H., additional, Wu, X., additional, Xia, Q., additional, Yang, H., additional, Yang, L., additional, Yen, Y.-R., additional, Zeldovich, O., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2019
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27. VUV-Sensitive Silicon Photomultipliers for Xenon Scintillation Light Detection in nEXO

Author: Jamil, A., primary, Ziegler, T., additional, Hufschmidt, P., additional, Li, G., additional, Lupin-Jimenez, L., additional, Michel, T., additional, Ostrovskiy, I., additional, Retiere, F., additional, Schneider, J., additional, Wagenpfeil, M., additional, Alamre, A., additional, Albert, J. B., additional, Anton, G., additional, Arnquist, I. J., additional, Badhrees, I., additional, Barbeau, P. S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Bourque, F., additional, Brodsky, J. P., additional, Brown, E., additional, Brunner, T., additional, Burenkov, A., additional, Cao, G. F., additional, Cao, L., additional, Cen, W. R., additional, Chambers, C., additional, Charlebois, S. A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Cote, M., additional, Craycraft, A., additional, Cree, W., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, Daugherty, S. J., additional, Daughhetee, J., additional, Delaquis, S., additional, Mesrobian-Kabakian, A. Der, additional, DeVoe, R., additional, Dilling, J., additional, Ding, Y. Y., additional, Dolinski, M. J., additional, Dragone, A., additional, Echevers, J., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Feyzbakhsh, S., additional, Fontaine, R., additional, Fudenberg, D., additional, Gallina, G., additional, Giacomini, G., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E. V., additional, Harris, D., additional, Hasan, M., additional, Heffner, M., additional, HoBl, J., additional, Hoppe, E. W., additional, House, A., additional, Hughes, M., additional, Ito, Y., additional, Iverson, A., additional, Jessiman, C., additional, Jewell, M. J., additional, Jiang, X. S., additional, Karelin, A., additional, Kaufman, L. J., additional, Koffas, T., additional, Kravitz, S., additional, Krucken, R., additional, Kuchenkov, A., additional, Kumar, K. S., additional, Lan, Y., additional, Larson, A., additional, Leonard, D. S., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lin, Y. H., additional, Lv, P., additional, MacLellan, R., additional, Mong, B., additional, Moore, D. C., additional, Murray, K., additional, Newby, R. J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Odian, A., additional, Oriunno, M., additional, Orrell, J. L., additional, Ortega, G. S., additional, Overman, C. T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Qiu, D., additional, Radeka, V., additional, Raguzin, E., additional, Rao, T., additional, Rescia, S., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P. C., additional, Roy, N., additional, Saldanha, R., additional, Sangiorgio, S., additional, Schmidt, S., additional, Schubert, A., additional, Sinclair, D., additional, Skarpaas, K., additional, Soma, A. K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X. L., additional, Tarka, M., additional, Todd, J., additional, Tolba, T., additional, Totev, T. I., additional, Tsang, R., additional, Tsang, T., additional, Vachon, F., additional, Veenstra, B., additional, Veeraraghavan, V., additional, Visser, G., additional, Vuilleumier, J.-L., additional, Wang, Q., additional, Watkins, J., additional, Weber, M., additional, Wei, W., additional, Wen, L. J., additional, Wichoski, U., additional, Wrede, G., additional, Wu, S. X., additional, Wu, W. H., additional, Xia, Q., additional, Yang, L., additional, Yen, Y.-R., additional, Zeldovich, O., additional, Zhang, X., additional, Zhao, J., additional, and Zhou, Y., additional
Published: 2018
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28. Study of silicon photomultiplier performance in external electric fields

Author: Sun, X.L., primary, Tolba, T., additional, Cao, G.F., additional, Lv, P., additional, Wen, L.J., additional, Odian, A., additional, Vachon, F., additional, Alamre, A., additional, Albert, J.B., additional, Anton, G., additional, Arnquist, I.J., additional, Badhrees, I., additional, Barbeau, P.S., additional, Beck, D., additional, Belov, V., additional, Bhatta, T., additional, Bourque, F., additional, Brodsky, J. P., additional, Brown, E., additional, Brunner, T., additional, Burenkov, A., additional, Cao, L., additional, Cen, W.R., additional, Chambers, C., additional, Charlebois, S.A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Côté, M., additional, Craycraft, A., additional, Cree, W., additional, Dalmasson, J., additional, Daniels, T., additional, Darroch, L., additional, Daugherty, S.J., additional, Daughhetee, J., additional, Delaquis, S., additional, Mesrobian-Kabakian, A. Der, additional, DeVoe, R., additional, Dilling, J., additional, Ding, Y.Y., additional, Dolinski, M.J., additional, Dragone, A., additional, Echevers, J., additional, Fabris, L., additional, Fairbank, D., additional, Fairbank, W., additional, Farine, J., additional, Feyzbakhsh, S., additional, Fierlinger, P., additional, Fontaine, R., additional, Fudenberg, D., additional, Gallina, G., additional, Giacomini, G., additional, Gornea, R., additional, Gratta, G., additional, Hansen, E.V., additional, Harris, D., additional, Heffner, M., additional, Hoppe, E. W., additional, Hößl, J., additional, House, A., additional, Hufschmidt, P., additional, Hughes, M., additional, Ito, Y., additional, Iverson, A., additional, Jamil, A., additional, Jessiman, C., additional, Jewell, M.J., additional, Jiang, X.S., additional, Karelin, A., additional, Kaufman, L.J., additional, Kodroff, D., additional, Koffas, T., additional, Kravitz, S., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Larson, A., additional, Leonard, D.S., additional, Li, G., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lin, Y.H., additional, MacLellan, R., additional, Michel, T., additional, Moe, M., additional, Mong, B., additional, Moore, D.C., additional, Murray, K., additional, Newby, R.J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Nusair, O., additional, Odgers, K., additional, Oriunno, M., additional, Orrell, J.L., additional, Ortega, G. S., additional, Ostrovskiy, I., additional, Overman, C.T., additional, Parent, S., additional, Piepke, A., additional, Pocar, A., additional, Pratte, J.-F., additional, Qiu, D., additional, Radeka, V., additional, Raguzin, E., additional, Rao, T., additional, Rescia, S., additional, Retière, F., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Saldanha, R., additional, Sangiorgio, S., additional, Schmidt, S., additional, Schneider, J., additional, Sinclair, D., additional, VIII, K. Skarpaas, additional, Soma, A.K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Tarka, M., additional, Todd, J., additional, Totev, T.I., additional, Tsang, R., additional, Tsang, T., additional, Veenstra, B., additional, Veeraraghavan, V., additional, Visser, G., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Wang, Q., additional, Watkins, J., additional, Weber, M., additional, Wei, W., additional, Wichoski, U., additional, Wrede, G., additional, Wu, S.X., additional, Wu, W.H., additional, Xia, Q., additional, Yang, L., additional, Yen, Y.-R., additional, Zeldovich, O., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2018
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29. Characterization of an Ionization Readout Tile for nEXO

Author: Jewell, M., primary, Schubert, A., additional, Cen, W.R., additional, Dalmasson, J., additional, DeVoe, R., additional, Fabris, L., additional, Gratta, G., additional, Jamil, A., additional, Li, G., additional, Odian, A., additional, Patel, M., additional, Pocar, A., additional, Qiu, D., additional, Wang, Q., additional, Wen, L.J., additional, Albert, J.B., additional, Anton, G., additional, Arnquist, I.J., additional, Badhrees, I., additional, Barbeau, P., additional, Beck, D., additional, Belov, V., additional, Bourque, F., additional, Brodsky, J. P., additional, Brown, E., additional, Brunner, T., additional, Burenkov, A., additional, Cao, G.F., additional, Cao, L., additional, Chambers, C., additional, Charlebois, S.A., additional, Chiu, M., additional, Cleveland, B., additional, Coon, M., additional, Craycraft, A., additional, Cree, W., additional, Côté, M., additional, Daniels, T., additional, Daugherty, S.J., additional, Daughhetee, J., additional, Delaquis, S., additional, Mesrobian-Kabakian, A. Der, additional, Didberidze, T., additional, Dilling, J., additional, Ding, Y.Y., additional, Dolinski, M.J., additional, Dragone, A., additional, Fairbank, W., additional, Farine, J., additional, Feyzbakhsh, S., additional, Fontaine, R., additional, Fudenberg, D., additional, Giacomini, G., additional, Gornea, R., additional, Hansen, E.V., additional, Harris, D., additional, Hasan, M., additional, Heffner, M., additional, Hoppe, E. W., additional, House, A., additional, Hufschmidt, P., additional, Hughes, M., additional, Hößl, J., additional, Ito, Y., additional, Iverson, A., additional, Jiang, X.S., additional, Johnston, S., additional, Karelin, A., additional, Kaufman, L.J., additional, Koffas, T., additional, Kravitz, S., additional, Krücken, R., additional, Kuchenkov, A., additional, Kumar, K.S., additional, Lan, Y., additional, Leonard, D.S., additional, Li, S., additional, Li, Z., additional, Licciardi, C., additional, Lin, Y.H., additional, MacLellan, R., additional, Michel, T., additional, Mong, B., additional, Moore, D., additional, Murray, K., additional, Newby, R.J., additional, Ning, Z., additional, Njoya, O., additional, Nolet, F., additional, Odgers, K., additional, Oriunno, M., additional, Orrell, J.L., additional, Ostrovskiy, I., additional, Overman, C.T., additional, Ortega, G. S., additional, Parent, S., additional, Piepke, A., additional, Pratte, J.-F., additional, Radeka, V., additional, Raguzin, E., additional, Rao, T., additional, Rescia, S., additional, Retiere, F., additional, Robinson, A., additional, Rossignol, T., additional, Rowson, P.C., additional, Roy, N., additional, Saldanha, R., additional, Sangiorgio, S., additional, Schmidt, S., additional, Schneider, J., additional, Sinclair, D., additional, Skarpaas, K., additional, Soma, A.K., additional, St-Hilaire, G., additional, Stekhanov, V., additional, Stiegler, T., additional, Sun, X.L., additional, Tarka, M., additional, Todd, J., additional, Tolba, T., additional, Tsang, R., additional, Tsang, T., additional, Vachon, F., additional, Veeraraghavan, V., additional, Visser, G., additional, Vuilleumier, J.-L., additional, Wagenpfeil, M., additional, Weber, M., additional, Wei, W., additional, Wichoski, U., additional, Wrede, G., additional, Wu, S.X., additional, Wu, W.H., additional, Yang, L., additional, Yen, Y.-R., additional, Zeldovich, O., additional, Zhang, X., additional, Zhao, J., additional, Zhou, Y., additional, and Ziegler, T., additional
Published: 2018
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30. 3D Digital SiPM and Smart Silicon Interposer for nEXO

Author: Charlebois, S, Bourque, F, Momar Souare, P, Nolet, F, Dequivre, T, Al Alam, E, Jean, É, Fontaine, R, Danovitch, D., Sylvestre, J, Pratte, J-F., Laboratoire Nanotechnologies Nanosystèmes (LN2 ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Sherbrooke (UdeS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS), Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), and Université de Sherbrooke (UdeS)
Subjects: [SPI]Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

31. Sherbrooke's Electronics

Author: Pratte, J-F, Bourque, F, Nolet, F, Dubois, F., Bernard, X, Parent, S, Dequivre, T, Al Alam, E, Jean, E, Dautet, H., Fontaine, R, Danovitch, D., Sylvestre, J, Charlebois, S., Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Groupe d'Etudes des Matériaux Hétérogènes (GEMH), Université de Limoges (UNILIM)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Laboratoire Nanotechnologies Nanosystèmes (LN2 ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Sherbrooke (UdeS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS), and Excelitas Canada Inc, Quebec City, PQ J7V 8P7, Canada
Subjects: [SPI]Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

32. The 3D digital SiPM for nEXO

Author: Pratte, JF, Bourque, F, Rossignol, T, Bernard, X, Parent, S, Rhéaume, VP, Côté, M, Maurais, L, Nolet, F, Dequivre, T, Al Alam, E, Vachon, F, Fontaine, R, Danovitch, D., Sylvestre, J, Charlebois, SA, Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Laboratoire Nanotechnologies Nanosystèmes (LN2 ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), and Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Sherbrooke (UdeS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI]Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

33. Sherbrooke’s First 3D Digital SiPM: Measurements, Recommendations and Future Work

Author: Pratte, JF, Bernard, X, Rhéaume, VP, Parent, S, Nolet, F, Maurais, L, Bérubé, BL, Dubois, F., Dequivre, T, Corbeil Therrien, A, Tétrault, M-A, Paulin, C., Martel, S, Dautet, H., Fontaine, R, Charlebois, SA, LN2, UMI3463, Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Groupe d'Etudes des Matériaux Hétérogènes (GEMH), Université de Limoges (UNILIM)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Laboratoire Nanotechnologies Nanosystèmes (LN2 ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Sherbrooke (UdeS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and Excelitas Canada Inc, Quebec City, PQ J7V 8P7, Canada
Subjects: [SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2016

34. nEXO Pre-Conceptual Design Report

Author: Kharusi, S. Al, Albert, J. B., Alfaris, M., Anton, G., Arnquist, I. J., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Bourque, F., Brodski, J. P., Brown, E., Brunner, T., Burenkov, A., Cao, G. F., Cen, W. R., Chambers, C., Charlebois, S. A., Chiu, M., Cleveland, B., Conley, R., Coon, M., Craycraft, A., Côté, M., Dalmasson, J., Daniels, T., Danovitch, D., Darroch, L., Daugherty, S. J., Daughhetee, J., Devoe, R., Delaquis, S., Mesrobian-Kabakian, A., Di Vacri, M. L., Dilling, J., Ding, Y. Y., Dolinski, M. J., Dragone, A., Echevers, J., Fabris, L., Fairbank, D., Fairbank, W., Farine, J., Ferrara, S., Feyzbakhsh, S., Fierlinger, P., Fontaine, R., Fudenberg, D., Gallina, G., Giacomini, G., Gornea, R., Gratta, G., Haller, G., Hansen, E. V., Harris, D., Hasi, J., Heffner, M., Hoppe, E. W., House, A., Hufschmidt, P., Hughes, M., Hößl, J., Ito, Y., Iverson, A., Jamil, A., Jessiman, C., Michael Jewell, Jiang, X. S., Karelin, A., Kaufman, L. J., Kenney, C., Killick, R., Kodroff, D., Koffas, T., Kravitz, S., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Lewis, C. M., Li, G., Li, S., Li, Z., Licciardi, C., Lin, Y. H., Lv, P., Maclellan, R., Mcfarlane, K., Michel, T., Moe, M., Mong, B., Moore, D. C., Murray, K., Newby, R. J., Nguyen, T., Ning, Z., Njoya, O., Nolet, F., Nusair, O., Odgers, K., Odian, A., Oriunno, M., Orrell, J. L., Ortega, G. S., Ostrovskiy, I., Overman, C. T., Parent, S., Patel, M., Peña-Perez, A., Piepke, A., Pocar, A., Pratte, J. -F, Radeka, V., Raguzin, E., Rao, T., Rescia, S., Retière, F., Robinson, A., Rossignol, T., Rowson, P. C., Roy, N., Runge, J., Saldanha, R., Sangiorgio, S., Schmidt, S., Schneider, J., Schubert, A., Segal, J., Sinclair, D., Skarpaas, K., Soma, A. K., Spitaels, K., St-Hilaire, G., Stekhanov, V., Stiegler, T., Sun, X. L., Tarka, M., Todd, J., Tolba, T., Totev, T. I., Tsang, R., Tsang, T., Vachon, F., Veenstra, B., Veeraraghavan, V., Visser, G., Vogel, P., Vuilleumier, J. -L, Wagenpfeil, M., Ward, M., Watkins, J., Weber, M., Wei, W., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Wu, W. H., Xia, Q., Yang, L., Yen, Y. -R, Zeldovich, O., Zhang, X., Zhao, J., and Ziegler, T.

35. Towards a Multi-Pixel Photon-to-Digital Converter for Time-Bin Quantum Key Distribution.

Author: Carrier S, Labrecque-Dias M, Tannous R, Gendron P, Nolet F, Roy N, Rossignol T, Vachon F, Parent S, Jennewein T, Charlebois S, and Pratte JF
Abstract: We present an integrated single-photon detection device custom designed for quantum key distribution (QKD) with time-bin encoded single photons. We implemented and demonstrated a prototype photon-to-digital converter (PDC) that integrates an 8 × 8 single-photon avalanche diode (SPAD) array with on-chip digital signal processing built in TSMC 65 nm CMOS. The prototype SPADs are used to validate the QKD functionalities with an array of time-to-digital converters (TDCs) to timestamp and process the photon detection events. The PDC uses window gating to reject noise counts and on-chip processing to sort the photon detections into respective time-bins. The PDC prototype achieved a 22.7 ps RMS timing resolution and demonstrated operation in a time-bin setup with 158 ps time-bins at an optical wavelength of 410 nm. This PDC can therefore be an important building block for a QKD receiver and enables compact and robust time-bin QKD systems with imaging detectors.
Published: 2023
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36. Mitotic waves in an import-diffusion model with multiple nuclei in a shared cytoplasm.

Author: Nolet FE and Gelens L
Subjects: Animals, Cell Cycle physiology, Female, Giant Cells physiology, Xenopus laevis, Biological Clocks physiology, Cell Nucleus physiology, Cytoplasm physiology, Diffusion, Models, Theoretical, Nuclear Envelope physiology
Abstract: Nuclei import and export proteins, including cell cycle regulators. These import-export processes are modulated periodically by the cell cycle, for example due to the periodic assembly and breakdown of the nuclear envelope. As such, replicated DNA can be segregated between the two daughter cells and the proteins that were localized in the nucleus are free to diffuse throughout the cytoplasm. Here, we study a mathematical import-diffusion model to show how proteins, i.e. cell cycle regulators, could be redistributed in the cytoplasm by nuclei that periodically toggle between interphase and mitosis. We show that when the cell cycle period depends on the local concentration of regulators, the model exhibits mitotic waves. We discuss how the velocity and spatial origin of these mitotic waves depend on the different model parameters. This work is motivated by recent in vitro experiments reporting on mitotic waves in cycling cell-free extracts made with Xenopus laevis frog eggs, where multiple nuclei share the same cytoplasm. Such experiments have shown that nuclei act as pacemakers for the cell cycle and thus play an important role in collectively defining the spatial origin of mitotic waves., (Copyright © 2021 Elsevier B.V. All rights reserved.)
Published: 2021
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37. 3D Photon-to-Digital Converter for Radiation Instrumentation: Motivation and Future Works.

Author: Pratte JF, Nolet F, Parent S, Vachon F, Roy N, Rossignol T, Deslandes K, Dautet H, Fontaine R, and Charlebois SA
Abstract: Analog and digital SiPMs have revolutionized the field of radiation instrumentation by replacing both avalanche photodiodes and photomultiplier tubes in many applications. However, multiple applications require greater performance than the current SiPMs are capable of, for example timing resolution for time-of-flight positron emission tomography and time-of-flight computed tomography, and mitigation of the large output capacitance of SiPM array for large-scale time projection chambers for liquid argon and liquid xenon experiments. In this contribution, the case will be made that 3D photon-to-digital converters, also known as 3D digital SiPMs, have a potentially superior performance over analog and 2D digital SiPMs. A review of 3D photon-to-digital converters is presented along with various applications where they can make a difference, such as time-of-flight medical imaging systems and low-background experiments in noble liquids. Finally, a review of the key design choices that must be made to obtain an optimized 3D photon-to-digital converter for radiation instrumentation, more specifically the single-photon avalanche diode array, the CMOS technology, the quenching circuit, the time-to-digital converter, the digital signal processing and the system level integration, are discussed in detail.
Published: 2021
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38. Synchronization in reaction-diffusion systems with multiple pacemakers.

Author: Nolet FE, Rombouts J, and Gelens L
Subjects: Computer Simulation, Models, Neurological, Signal Transduction physiology, Action Potentials physiology, Biological Clocks physiology, Synaptic Transmission physiology
Abstract: Spatially extended oscillatory systems can be entrained by pacemakers, regions that oscillate with a higher frequency than the rest of the medium. Entrainment happens through waves originating at a pacemaker. Typically, biological and chemical media can contain multiple pacemaker regions, which compete with each other. In this paper, we perform a detailed numerical analysis of how wave propagation and synchronization of the medium depend on the properties of these pacemakers. We discuss the influence of the size and intrinsic frequency of pacemakers on the synchronization properties. We also study a system in which the pacemakers are embedded in a medium without any local dynamics. In this case, synchronization occurs if the coupling determined by the distance and diffusion is strong enough. The transition to synchronization is reminiscent of systems of discrete coupled oscillators.
Published: 2020
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39. Titanium orthodontic appliances for allergic patients.

Author: Maspero C, Giannini L, Galbiati G, Nolet F, Esposito L, and Farronato G
Subjects: Adolescent, Child, Composite Resins adverse effects, Female, Humans, Hypersensitivity etiology, Male, Nickel adverse effects, Orthodontic Appliance Design, Stomatitis etiology, Orthodontic Appliances, Titanium
Abstract: Aim: The aim of our study was to assess the use of orthodontic appliances made in titanium for patients with an allergy to resin and nickel. We aim to highlight the resolution of problems such as stomatitis and peri-labial dermatitis, which generally manifest in patients who use traditional orthodontic appliances in acrylic resin and steel., Methods: A total of 120 patients of ages between ten and fifteen undergoing orthodontic treatment requiring a rapid palatal expander or a mobile appliance were evaluated and two patch sensitivity tests were done to assess the presence of allergies., Results: The biocompatibility of a material is directly dependent on its corrosion effect. If a metal does not allow the release of ions it will not have a damaging action or cause destruction on the cellular DNA. The oxidation status of an ion is related to the reactivity of the ion itself and thus may give the latter a carcinogenic effect. Titanium appliances used for this study have obtained excellent results due to their ability to form superficial oxides, which block the oxidation phenomenon and thus corrosion., Conclusion: We have noticed a total regression of the symptoms after the use of titanium appliances in patients who had a sensitivity reaction.
Published: 2014

40. Pycnodysostosis: review and case report.

Author: Farronato G, Salvadori S, Nolet F, Borgonovo A, and Esposito L
Subjects: Activator Appliances, Bone Resorption, Cephalometry, Child, Combined Modality Therapy, Dental Caries etiology, Disease Susceptibility, Fractures, Bone etiology, Fractures, Spontaneous etiology, Humans, Male, Malocclusion etiology, Malocclusion surgery, Orthodontics, Corrective, Periodontitis etiology, Pycnodysostosis complications, Pycnodysostosis diagnostic imaging, Pycnodysostosis genetics, Radiography, Skull abnormalities, Tooth Extraction, Pycnodysostosis therapy
Abstract: Aim: Aim of the present study was to present a case report of a patient suffering from pycnodysostosis and assess how it may manifest and affect the dental/ orthodontic treatment., Methods: An 11-year-old patient who was diagnosed with pycnodysostosis at the age of 18 months, attended the orthodontics department requiring treatment for extensive carious lesions, periodontal disease and severe crowding., Results: After an accurate radiographic, clinical and orthodontic assessment of the patient taking into consideration the severity of the condition and the patient's necessities, we have formulated a treatment plan, which was accepted by both the patient and parents. We took into consideration the risks and benefits of the options available and the requests of the patient., Conclusion: We have decided to opt for the extraction of teeth to relieve the crowding as this was impeding good oral hygiene and hence increasing the risk of caries and periodontal disease. Such patients must be placed under an oral hygiene prevention scheme, a treatment plan must be accurately designed and the patient must be constantly motivated.
Published: 2014

41. Qualitative and quantitative assessment of plaque bacteria in pediatric patients, patients undergoing orthodontic treatment, combined orthdontic-surgical treatment and implant-prosthetic rehabilitation.

Author: Farronato G, Giannini L, Nolet F, Galbiati G, Garagiola U, and Maspero C
Subjects: Adolescent, Child, Child, Preschool, Dental Implants, Humans, Oral Surgical Procedures, Orthodontics, Bacteria isolation & purification, Dental Plaque microbiology
Abstract: Aim: The aim of this paper was to describe the qualitative and quantitative changes occurring within the oral bacterial flora of several groups of patients following oral prevention protocols during the stages of the dental treatment they required., Methods: Three hundred patients were enrolled in the study. The selected patients were categorized into different groups to receive preventive strategies according to their needs and treatment required. Plaque samples from each patient were collected at different intervals according to the treatment they were undergoing. These were then assessed under a microscope to carry out a quantitative and qualitative assessment of the plaque., Results: The Mean Plaque Index Score of most patients generally decreased during the various treatment phases and hence the overall bacterial count. However, we noticed a slight increase in the plaque index in patients undergoing orthodontic surgery after placement of the orthodontic appliance and patients undergoing combined orthodontic-surgical treatment during the intermaxillary fixation phase. We generally found that the coccoidal bacterial form was the most prevalent., Conclusion: Patients who were adequately instructed and motivated through oral hygiene prevention strategies, showed a significant decrease in the plaque levels and in the overall bacterial components between the first visit and the successive sample taking. Even though we noticed a slight increase in the plaque index in patients undergoing the intermaxillary fixation phase, this decreased immediately once the phase ended and the patients managed to return to the routine oral hygiene care. This highlights the importance of constant motivation and oral hygiene instruction reinforcement.
Published: 2014

42. Assessment of inter- and intra-operator cephalometric tracings on cone beam CT radiographs: comparison of the precision of the cone beam CT versus the latero-lateral radiograph tracing.

Author: Farronato G, Salvadori S, Nolet F, Zoia A, and Farronato D
Subjects: Adolescent, Anatomic Landmarks diagnostic imaging, Cephalometry methods, Child, Cone-Beam Computed Tomography methods, Female, Humans, Imaging, Three-Dimensional methods, Imaging, Three-Dimensional statistics & numerical data, Male, Mandible diagnostic imaging, Maxilla diagnostic imaging, Nasal Bone diagnostic imaging, Observer Variation, Reproducibility of Results, Sella Turcica diagnostic imaging, Skull Base diagnostic imaging, Vertical Dimension, Cephalometry statistics & numerical data, Cone-Beam Computed Tomography statistics & numerical data
Abstract: Background: In this study we aimed at quantifying the possible errors which may occur when assessing specific reference planes and linear derivants on cephalometric radiographs traced manually and digitally. Furthermore, we have compared the precision of the tracings according to both the two- and three-dimensional (2D and 3D respectively) techniques and between clinicians., Findings: We have obtained via cone beam computed tomography (CBCT) archive of the orthodontics department of the University of Milan 20 cone beam CT radiographs from which we have obtained 20 latero-lateral radiographs. Five independent clinicians referred to as A, B, C, D, E have been randomly selected to trace both radiographs maintaining the same working and lighting conditions to minimize the possibility of operator- and environment-dependent errors from occurring. The results have been statistically assessed by Student's t test. The comparison of the data gathered from the tracings in 2D and 3D shows that certain measurements have statistically significant differences. Particularly, the difference in the measurements of the sagittal dimension of the mandible and the anterior and posterior nasal spines has resulted to be statistically significant. The results of the intra-operator comparison proved that the 3D technique is extremely precise., Conclusion: Our study determines that the 3D technique allows to obtain more precise results and with several advantages when compared to the conventional technique such as a true representation of the anatomical structures, less risk of errors occurring due to clinician skills and absence of overlapping anatomical structures.
Published: 2014
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