NDLI: The COCAE detector: An instrument for localization — Identification of radioactive sources

Content Provider	IEEE Xplore Digital Library
Author	Lambropoulos, C.P. Aoki, T. Crocco, J. Dieguez, E. Disch, C. Fauler, A. Fiederle, M. Hatzistratis, D. Gnatyuk, V.A. Karafasoulis, K. Kosyachenko, L.A. Levytskyi, S.N. Loukas, D. Maslyanchuk, O.L. Medvids, A. Orphanoudakis, T. Papadakis, I. Papadimitriou, A. Papakonstantinou, K. Potiriadis, C. Schulman, T. Sklyarchuk, V.V. Spartiotis, K. Theodoratos, G. Vlasenko, O.I. Zachariadou, K. Zervakis, E.
Copyright Year	2010
Description	Author affiliation: Technological Educational Institute of Chalkida, Psahna - Evia, 34400 Greece (Lambropoulos, C.P.; Hatzistratis, D.; Orphanoudakis, T.; Papakonstantinou, K.; Theodoratos, G.; Zervakis, E.) \|\| Freiburger Materialforschungszentrum, Albert Ludwigs University, Freiburg, Germany (Disch, C.; Fauler, A.; Fiederle, M.) \|\| Departemento de Fisica de Materiales, Universidad Autonoma de Madrid, Madrid, Spain (Crocco, J.; Dieguez, E.) \|\| Chernivtsi Yury Fedkovych National University, Chernivtsi, Ukraine (Kosyachenko, L.A.; Maslyanchuk, O.L.; Sklyarchuk, V.V.) \|\| Research Institute of Electronics, Shizuoka University, Hamamatsu, Japan (Aoki, T.) \|\| Greek Atomic Energy Commission, Agia Paraskevi, Attiki, Greece (Karafasoulis, K.; Potiriadis, C.) \|\| Oy Ajat Ltd, Espoo, Finland (Schulman, T.; Spartiotis, K.) \|\| Institute of Nuclear Physics, National Center for Scientific Research, Agia Paraskevi, Attiki, Greece (Loukas, D.; Papadakis, I.; Papadimitriou, A.; Zachariadou, K.) \|\| Riga Technical University, Riga, Latvia (Medvids, A.) \|\| V.E. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine (Gnatyuk, V.A.; Levytskyi, S.N.; Vlasenko, O.I.)
Abstract	The COCAE project develops an instrument for localization and identification of radioactive sources. For the localization task it will exploit the Compton scattered photons within its detecting layers. It is based on pixilated Cd(Zn)Te matrices in a stacked configuration. Progress has been achieved in all the components necessary for this technology. CdZnTe crystals have been grown of up to 75mm in diameter. A wafer level pixelization process has been tested and its results will be presented. Very good energy resolution is necessary for the performance of the instrument. For this reason we have investigated planar M-p-n diodes fabricated by using laser-induced solid phase doping and Schottky diodes created by Arion etching of the Cd(Zn)Te surfaces before deposition of Ni electrodes. The energy resolution achieved is better than 1% FWHM @662KeV. The development of a pixel CMOS readout integrated circuit has been undertaken. It outputs in digital format address, energy and time information for the pixels which have collected charge above a given threshold. Simulation studies of the minimum detection limits, of the Compton sequencing algorithms, of the angular resolution and of the reconstruction of the radioactive source position have been performed. Experiments with a precursor setup using an existing hybrid detector are underway.
Starting Page	3910
Ending Page	3917
File Size	1061156
Page Count	8
File Format	PDF
ISBN	9781424491063
ISSN	10957863
e-ISBN	9781424491056
DOI	10.1109/NSSMIC.2010.5874548
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Crystals Energy resolution Pixel Schottky diodes Electronic mail Instruments
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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The COCAE Detector: An Instrument for Localization—Identification of Radioactive Sources

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