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Your search keyword '"Doriese, W."' showing total 14 results
Start Over Author "Doriese, W." Topic transition-edge sensor
14 results on '"Doriese, W."'

3. X-ray Spectroscopy of Muonic Atoms Isolated in Vacuum with Transition Edge Sensors

Author

Okada, S., Azuma, T., Bennett, D. A., Caradonna, P., Doriese, W. B., Durkin, M. S., Fowler, J. W., Gard, J. D., Hashimoto, T., Hayakawa, R., Hilton, G. C., Ichinohe, Y., Indelicato, P., Isobe, T., Kanda, S., Katsuragawa, M., Kawamura, N., Kino, Y., Miyake, Y., Morgan, K. M., Ninomiya, K., Noda, H., O’Neil, G. C., Okumura, T., Reintsema, C. D., Schmidt, D. R., Shimomura, K., Strasser, P., Swetz, D. S., Takahashi, T., Takeda, S., Takeshita, S., Tatsuno, H., Ueno, Y., Ullom, J. N., Watanabe, S., and Yamada, S.

Published
2020
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5. Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment

Author

Tatsuno, H., Doriese, W. B., Bennett, D. A., Curceanu, C., Fowler, J. W., Gard, J., Gustafsson, F. P., Hashimoto, T., Hayano, R. S., Hays-Wehle, J. P., Hilton, G. C., Iliescu, M., Ishimoto, S., Itahashi, K., Iwasaki, M., Kuwabara, K., Ma, Y., Marton, J., Noda, H., O’Neil, G. C., Okada, S., Outa, H., Reintsema, C. D., Sato, M., Schmidt, D. R., Shi, H., Suzuki, K., Suzuki, T., Uhlig, J., Ullom, J. N., Widmann, E., Yamada, S., Zmeskal, J., and Swetz, D. S.

Published
2016
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11. Mitigating the Effects of Charged Particle Strikes on TES Arrays for Exotic Atom X-ray Experiments.

Author

Tatsuno, H., Bennett, D. A., Doriese, W. B., Durkin, M. S., Fowler, J. W., Gard, J. D., Hashimoto, T., Hayakawa, R., Hayashi, T., Hilton, G. C., Ichinohe, Y., Noda, H., O'Neil, G. C., Okada, S., Reintsema, C. D., Schmidt, D. R., Swetz, D. S., Ullom, J. N., and Yamada, S.

Subjects
EXOTIC atoms, X-rays, PARTICLES, STRIKES & lockouts, CROSSTALK
Abstract

Exotic atom experiments place transition-edge sensor (TES) microcalorimeter arrays in a high-energy charged particle-rich environment. When a high-energy charged particle passes through the silicon substrate of a TES array, a large amount of energy is deposited and small pulses are generated across multiple pixels in the TES array due to thermal crosstalk. We have developed analysis techniques to assess and reduce the effects of charged particle events on exotic atom X-ray measurements. Using this technique, the high-energy and low-energy components of the X-ray peaks due to pileup are eliminated, improving the energy resolution from 6.6 to 5.7 eV at 6.9 keV. [ABSTRACT FROM AUTHOR]

Published
2020
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12. On Low-Energy Tail Distortions in the Detector Response Function of X-Ray Microcalorimeter Spectrometers.

Author

O'Neil, G. C., Szypryt, P., Takacs, E., Tan, J. N., Buechele, S. W., Naing, A. S., Joe, Y. I., Swetz, D., Schmidt, D. R., Doriese, W. B., Gard, J. D., Reintsema, C. D., Ullom, J. N., Villarrubia, J. S., and Ralchenko, Yu.

Subjects
TAILS, X-ray spectrometers, X-ray spectra, SPECTRAL lines, GAUSSIAN function, DETECTORS
Abstract

We use narrow spectral lines from the X-ray spectra of various highly charged ions to measure low-energy tail-like deviations from a Gaussian response function in a microcalorimeter X-ray spectrometer with Au absorbers at energies from 650 to 3320 eV. We review the literature on low-energy tails in other microcalorimeter X-ray spectrometers and present a model that explains all the reviewed tail fraction measurements. In this model, a low-energy tail arises from the combination of electron escape and energy trapping associated with Bi X-ray absorbers. [ABSTRACT FROM AUTHOR]

Published
2020
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13. A Predictive Control Algorithm for Time-Division-Multiplexed Readout of TES Microcalorimeters.

Author

Durkin, Malcolm, O'Neil, G. C., Doriese, W. B., Gard, J. D., Hilton, G. C., Imrek, J., Ortiz, N., Reintsema, C. D., Stevens, R. W., Swetz, D. S., and Ullom, J. N.

Subjects
CALORIMETERS, ALGORITHMS, MULTIPLEXING, SQUIDS, DETECTORS
Abstract

Time division multiplexing (TDM) uses a digital flux-locked loop (DFLL) to linearize each first-stage SQUID amplifier. Presently, the dynamic range of our TDM systems is limited by the use of a proportional-integral controller to maintain the DFLL. In this paper, we use simulations to assess the improvements possible with a predictive control algorithm that anticipates rapid changes in transition-edge sensor current during the rising edge of an X-ray pulse. We calculate that the predictive control algorithm can improve our TDM architecture's dynamic range by 35%. This significant increase in multiplexing capabilities could be used to read out higher-energy X-rays, reduce readout noise, increase multiplexing factors, or reduce SQUID power output. [ABSTRACT FROM AUTHOR]

Published
2020
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14. Optimal filtering, record length, and count rate in transition-edge-sensor microcalorimeters.

Author

Doriese, W. B., Adams, J. S., Hilton, G. C., Irwin, K. D., Kilbourne, C. A., Schima, F. J., and Ullom, J. N.

Subjects
*CALORIMETERS, *DETECTORS, *SPECTROMETERS, *X-rays, *SCIENTIFIC apparatus & instruments
Abstract

In typical algorithms for optimally filtering transition-edge-sensor-microcalorimeter pulses, the average value of a filtered pulse is set to zero. The achieved energy resolution of the detector then depends strongly on the chosen length of the pulse record. We report experimental confirmation of this effect. We derive expressions for the dependence of energy resolution on record length, and apply them to a pair of detector models for the X-ray Microcalorimeter Spectrometer instrument on NASA/ESA/JAXA’s proposed International X-ray Observatory. Although the two models have identical pulse time-constants, they differ by a factor of two in the record length required to achieve a given energy resolution. Finally, we derive an expression for the maximum output count rate at high energy resolution of a TES pixel. [ABSTRACT FROM AUTHOR]

Published
2009
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