Analysis of detector response using 3-D position sensitive CZT gamma-ray spectrometers

被引：2
|
作者：
Zhang, F [1 ]
He, Z [1 ]
Xu, D [1 ]
机构：
[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA
来源：
2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5 | 2004年
关键词：
D O I：
10.1109/NSSMIC.2003.1352664
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Two 2.25 cm(3) CdZnTe gamma-ray spectrometers with 3-D position sensitivity were constructed and tested. By using 11 by 11 pixellated anodes and depth sensing technique, individual spectral data for each of over 2000 voxels were collected throughout the detector volume. Energy resolution of 1.11% FWHM, 1.57% FWHM and 2.13% FWHM at 662 keV were obtained for one, two and three-pixel events respectively from the 120 working pixels of one detector. Spatial variation of electron mobility and lift time product, energy resolution, photo-peak efficiency and total efficiency have been observed and analyzed. This analysis provides a direct observation on the uniformity of detector response (due to material and electric field distribution) in 3-dimension. The impact of the spatial variation of detector response on a CZT gamma-ray spectrometer will be discussed.
引用
收藏
页码：3493 / 3497
页数：5
相关论文
共 50 条
  • [31] A 3D CZT High Resolution Detector for X-and gamma-ray applications.
    Kuvvetli, I.
    Budtz-Jorgensen, C.
    Auricchio, N.
    Stephen, J.
    Caroli, E.
    Benassi, G.
    Zambelli, N.
    Zappettini, A.
    ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2014, 70 : C683 - C683
  • [32] Improved resolution for 3-d position sensitive CdZnTe spectrometers
    Zhang, F
    He, Z
    Xu, D
    Knoll, GF
    Wehe, DK
    Berry, JE
    IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2004, 51 (05) : 2427 - 2431
  • [33] A SENSITIVE DIRECTIONAL GAMMA-RAY DETECTOR
    CASSEN, B
    CURTIS, L
    REED, CW
    NUCLEONICS, 1950, 6 (02): : 78 - 81
  • [34] Energy Resolution Limiting Factors of Multi-Pixel Events in 3D Position Sensitive CZT Gamma-Ray Spectrometer
    Li, Wen
    Du, Yanfeng
    Yanoff, Brian D.
    Gordon, Jeffrey S.
    2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9, 2009, : 5303 - 5309
  • [35] Efficient temperature corrections for gamma-ray energy reconstruction in 3-D position-sensitive CdZnTe detectors
    Xia, Jiawei
    Zhu, Yuefeng
    He, Zhong
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020, 954 (954):
  • [36] Defects in CZT crystals and their relationship to gamma-ray detector performance
    Burger, A
    Chattopadhyay, K
    Chen, H
    Ma, X
    Ndap, JO
    Schieber, M
    Schlesinger, TE
    Yao, HW
    Erickson, J
    James, RB
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 448 (03): : 586 - 590
  • [37] Radiation measurement and imaging using 3D position sensitive pixelated CZT detector
    Kim, Younghak
    Lee, Taewoong
    Lee, Wonho
    NUCLEAR ENGINEERING AND TECHNOLOGY, 2019, 51 (05) : 1417 - 1427
  • [38] Development of an airborne gamma-ray spectrometer based on a CZT detector
    Joung, S.
    Ji, Y-Y
    Choi, Y.
    JOURNAL OF INSTRUMENTATION, 2021, 16 (10):
  • [39] 3-D Position Sensitive CZT PET System: Current Status
    Abbaszadeh, Shiva
    Levin, Craig S.
    2016 IEEE NUCLEAR SCIENCE SYMPOSIUM, MEDICAL IMAGING CONFERENCE AND ROOM-TEMPERATURE SEMICONDUCTOR DETECTOR WORKSHOP (NSS/MIC/RTSD), 2016,
  • [40] Characterization of Inter-detector Effects in a 3-D Position-Sensitive Dual-CZT Detector Modules for PET
    Gu, Yi
    Levin, Craig S.
    2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC), 2012, : 4088 - 4090
12345