Implementation of an imaging spectrometer for localization and identification of radioactive sources

Autor: Olivier Giarmana, Audrey Patoz, Daniel De Toro, Stephane Normand, Yves Menesguen, Philippe Talent, N. Menaa, Jean-Claude Angelique, Hermine Lemaire, Mehdi Gmar, Tebug Timi, Roger Abou Khalil, Florent Bonnet, Frederick Carrel, K. Amgarou, Vincent Schoepff
Přispěvatelé: Laboratoire Capteurs et Architectures Electroniques (LCAE), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Université Paris-Saclay-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CANBERRA France, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire National Henri Becquerel (LNHB), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département d'instrumentation Numérique (DIN (CEA-LIST))
Rok vydání: 2014
Předmět:
Time over Threshold
energy resolution
Imaging spectrometer
readout electronics
nuclear industry
homeland security applications
impact size
detection matrix
01 natural sciences
7. Clean energy
nuclear electronics
030218 nuclear medicine & medical imaging
law.invention
Sensitivity
pixel size tests
0302 clinical medicine
[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing
law
GAMPIX technology
energy sensitivity
Instrumentation
Gamma camera
CALIBRATION
Physics
preamplifiers
spectrometers
radioactive sources
Detector
imaging spectrometer development
PIXEL DETECTOR
Detectors
Dispersion
Cameras
Chip
GAMPIX gamma camera
TIME
pulse time spent
GAMMA-CAMERA
user-specified threshold
imaging spectrometer implementation
national security
Computer hardware
system design
Nuclear and High Energy Physics
Medipix3 readout chip
GAMPIX
spectrometric information limitation
Preamplifier
energy calibration
Gamma imaging
radioactive materials identification
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
[PHYS.PHYS.PHYS-COMP-PH]Physics [physics]/Physics [physics]/Computational Physics [physics.comp-ph]
03 medical and health sciences
Software portability
Timepix
Nuclear electronics
0103 physical sciences
radioactive source localization
Calibration
ToT approach superiority
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
010306 general physics
gamma-ray energy deposition
pixelated Timepix readout chip
Spectrometer
Pixel
010308 nuclear & particles physics
business.industry
ToT mode
experimental tests
time over threshold mode
radioactive source identification
radioactive sources spatial localization
spectrometric methods
charge preamplifiers
RESOLUTION
newly implemented imaging spectrometer improve performances
CEA LIST
business
Energy (signal processing)
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2014, 763, pp.97-103. ⟨10.1016/j.nima.2014.05.118⟩
ANIMMA 2013-Avancements in Nuclear Instrumentation Measurement Methods and their applications
ANIMMA 2013-Avancements in Nuclear Instrumentation Measurement Methods and their applications, Jun 2013, Marseille, France. pp.6727912, ⟨10.1109/ANIMMA.2013.6727912⟩
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2014, 763, pp.97-103. ⟨10.1016/j.nima.2014.05.118⟩
ISSN: 0168-9002
1872-9576
Popis: Spatial localization of radioactive sources is currently a main issue interesting nuclear industry as well as homeland security applications and can be achieved using gamma cameras. For several years, CEA LIST has been designing a new system, called GAMPIX, with improved sensitivity, portability and ease of use. The main remaining limitation of this system is the lack of spectrometric information, preventing the identification of radioactive materials. This article describes the development of an imaging spectrometer based on the GAMPIX technology. Experimental tests have been carried out according to both spectrometric methods enabled by the pixelated Timepix chip used in the GAMPIX gamma camera. The first method is based on the size of the impacts produced by a gamma-ray energy deposition in the detection matrix. The second one uses the Time over Threshold (ToT) mode of the Timepix chip and deals with time spent by pulses generated by charge preamplifiers over a user-specified threshold. Both energy resolution and sensitivity studies demonstrated the superiority of the ToT approach which will consequently be further explored. Energy calibration, tests of different pixel sizes for the Timepix chip and use of the Medipix3 chip are future milestones to improve performances of the newly implemented imaging spectrometer.
Databáze: OpenAIRE
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