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3 results on '"D. Trojand"'

1. Design, Construction and Commissioning of the Digital Hadron Calorimeter - DHCAL

Author

B. Haberichter, D. Trojand, Sau Lan Wu, Y. Onel, David Underwood, D. Northacker, Francois Corriveau, B. Furst, K. Francis, J. Smith, S. Holm, F. Skrzecz, Lei Xia, A. Bambaugh, J. Schlereth, Gary Drake, J. M. Butler, E. Hazen, Nicholas Mucia, T. Cundiff, K. Wood, Burak Bilki, Edwin Norbeck, V. J. Guarino, A. Zhao, P. Delurgio, Brian Pollack, J. Walendziak, A. Kreps, James Hoff, Qingmin Zhang, Jose Repond, Mayda Velasco, C. Adams, Z. Matijas, and L. Dal Monte

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Hadron, FOS: Physical sciences, 01 natural sciences, Signal, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, 0103 physical sciences, Fermilab, Detectors and Experimental Techniques, Instrumentation, Mathematical Physics, Physics, Resistive touchscreen, Large Hadron Collider, Calorimeter (particle physics), 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Physics::Accelerator Physics, High Energy Physics::Experiment, business, Beam (structure)
Abstract

A novel hadron calorimeter is being developed for future lepton colliding beam detectors. The calorimeter is optimized for the application of Particle Flow Algorithms (PFAs) to the measurement of hadronic jets and features a very finely segmented readout with 1 x 1 cm2 cells. The active media of the calorimeter are Resistive Plate Chambers (RPCs) with a digital, i.e. one-bit, readout. To first order the energy of incident particles in this calorimeter is reconstructed as being proportional to the number of pads with a signal over a given threshold. A large-scale prototype calorimeter with approximately 500,000 readout channels has been built and underwent extensive testing in the Fermilab and CERN test beams. This paper reports on the design, construction, and commissioning of this prototype calorimeter. A novel hadron calorimeter is being developed for future lepton colliding beam detectors. The calorimeter is optimized for the application of Particle Flow Algorithms (PFAs) to the measurement of hadronic jets and features a very finely segmented readout with 1 × 1 cm(2) cells. The active media of the calorimeter are Resistive Plate Chambers (RPCs) with a digital, i.e. one-bit, readout. To first order the energy of incident particles in this calorimeter is reconstructed as being proportional to the number of pads with a signal over a given threshold. A large-scale prototype calorimeter with approximately 500,000 readout channels has been built and underwent extensive testing in the Fermilab and CERN test beams. This paper reports on the design, construction, and commissioning of this prototype calorimeter. A novel hadron calorimeter is being developed for future lepton colliding beam detectors. The calorimeter is optimized for the application of Particle Flow Algorithms (PFAs) to the measurement of hadronic jets and features a very finely segmented readout with 1 x 1 cm2 cells. The active media of the calorimeter are Resistive Plate Chambers (RPCs) with a digital, i.e. one-bit, readout. To first order the energy of incident particles in this calorimeter is reconstructed as being proportional to the number of pads with a signal over a given threshold. A large-scale prototype calorimeter with approximately 500,000 readout channels has been built and underwent extensive testing in the Fermilab and CERN test beams. This paper reports on the design, construction, and commissioning of this prototype calorimeter.

Published
2016

2. Production and commissioning of a large prototype Digital Hadron Calorimeter for future colliding beam experiments

Author

J. N. Butler, T. Cundiff, Burak Bilki, Jose Repond, A. Baumbaugh, P. De Lurgio, A. Kreps, Qingmin Zhang, Lei Xia, J. Schlereth, Sau Lan Wu, W.N. Haberichter, Gary Drake, K. Francis, E. Hazen, J. Smith, J. Hoff, S. Holm, D. Trojand, and L. Dal Monte

Subjects
Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Electrical engineering, Integrated circuit, Tracking (particle physics), law.invention, Transmission (telecommunications), law, Nuclear electronics, Digital signal, Timestamp, business, Beam (structure)
Abstract

A new detector technology is being developed for future colliding beam experiments that is based on the use of fine-grained calorimetry, to optimize the use of Particle Flow Algorithms (PFAs) in measuring hadronic jets. Instead of traditional tower geometry and energy summation from many sampling layers, the new approach measures energy deposition in 1 cm2 cells on each sampling layer using discriminators. Jets are reconstructed using hit patterns from each layer, combined with information from inner tracking and the electromagnetic calorimeter. We have built a 480,000 channel prototype detector that is based on Resistive Plate Chambers (RPCs) to demonstrate this concept. The development is part of the CALICE Collaboration. The readout system uses a 64-channel custom integrated circuit called DCAL to record hits from each cell and apply a global timestamp. The chips mount directly on sophisticated front-end boards that are not only an integral part of the charge collection of the detector chambers, but also incorporate digital signal transmission, clock and control, and power and ground. The readout of data is serial, multiplexed into high-speed serial streams and sent to a “back-end” VME system for time-sorting and higher-level triggering. The system can be operated with an external trigger or be self-triggered, and can produce trigger signals from the front-end chips. The construction, installation, and commissioning of this prototype system is now complete. We have begun a measurement program using a test beam at Fermilab. An overview of the system is described. Experiences in building this large prototype system are reported. Results from the test beam are presented.

Published
2011
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3. Effects of high-energy particle showers on the embedded front-end electronics of an electromagnetic calorimeter for a future lepton collider

Author

U. Cornett, C. Adloff, M. A. Thomson, M. Reinecke, J. Fleury, S. Callier, D. David, Jose Repond, O. Wendt, N. Feege, E. Calvo Alamillo, Andrew White, Kiyotomo Kawagoe, D. Trojand, Y. Mikami, N. Wattimena, H. Li, Frank Simon, P. Cornebise, F. Fehr, B. Lutz, P. Eckert, D. R. Ward, M. C. Fouz, J-Y. Hostachy, Jiang Li, Ivan Marchesini, K. Francis, M. Terwort, P. D. Dauncey, L. Raux, Wei Shen, H. Ch Schultz-Coulon, E. Norbeck, Johannes Haller, S. Richter, A.S. Dyshkant, P. A. Smirnov, H. Ghazlane, Ph. Doublet, Vaclav Vrba, Jong-Sung Yu, J. Samson, V. Morgunov, E. Baldolemar, V. Boudry, K. Gadow, Erika Garutti, Daniel Jeans, Manqi Ruan, G. Falley, Anne-Marie Magnan, N. K. Watson, M. Faucci Giannelli, S. Lu, S. Karstensen, F. Krivan, P. Göttlicher, C. Günter, P. Mora de Freitas, M. Sosebee, F. Salvatore, F. Dulucq, G. C. Blazey, B. Belhorma, F. Wicek, Ch. de la Taille, S. V. Morozov, Yasar Onel, J. Bonis, Petr Sicho, Driss Benchekroun, Imad Baptiste Laktineh, L. Morin, N. T. Meyer, C. Kiesling, Y. Khoulaki, M. Reinhard, G. Musat, S. Manen, A. Tadday, Michal Marcisovsky, Lei Xia, A. I. Lucaci-Timoce, A. Vargas-Trevino, Abdeslam Hoummada, J. Zálešák, N. Seguin-Moreau, F. Sefkow, Francois Richard, R. Pöschl, S. Uozumi, Burak Bilki, A. Frey, H. Videau, G. Martin-Chassard, C. Cârloganu, Rainer Stamen, A. Kaplan, J. Puerta-Pelayo, B. Bouquet, L. Royer, J. Smith, M. Benyamna, Georgios Mavromanolakis, W. Yan, V. Zutshi, J. C. Brient, Riccardo Fabbri, S. T. Park, V. Bartsch, M. Anduze, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), CALICE, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Particle physics, High energy particle, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Integrated circuit, 01 natural sciences, Noise (electronics), law.invention, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, Application-specific integrated circuit, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Collider, Instrumentation, Physics, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, High Energy Physics::Experiment, business
Abstract

Application Specific Integrated Circuits, ASICs, similar to those envisaged for the readout electronics of the central calorimeters of detectors for a future lepton collider have been exposed to high-energy electromagnetic showers. A salient feature of these calorimeters is that the readout electronics will be embedded into the calorimeter layers. In this article it is shown that interactions of shower particles in the volume of the readout electronics do not alter the noise pattern of the ASICs. No signal at or above the MIP level has been observed during the exposure. The upper limit at the 95% confidence level on the frequency of fake signals is smaller than 1 × 10 − 5 for a noise threshold of about 60% of a MIP. For ASICs with similar design to those which were tested, it can thus be largely excluded that the embedding of the electronics into the calorimeter layers compromises the performance of the calorimeters.

Published
2011
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