3-D position sensitive CdZnTe gamma-ray spectrometers

被引：225

作者：

He, Z ^{[1
]}

Li, W

Knoll, GF

Wehe, DK

Berry, J

Stahle, CM

机构：

[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA

[2] NASA, Orbital Sci Corp, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 422卷 / 1-3期

关键词：

D O I：

10.1016/S0168-9002(98)00950-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Two 3-D position-sensitive room temperature semiconductor gamma-ray spectrometers have been built using 1 cm(3) cubic CdZnTe crystals. The lateral coordinates of gamma-ray interaction are obtained from the location of the 11(x) x 11(y) pixellated anodes and the depth (z) is obtained from the ratio of the signals coming from the cathode and the anode. Energy spectra from 662 keV incident gamma-rays have been collected from each of the 11(x) x 11(y) x 20(z) voxels in both of the CdZnTe devices. After corrections for electron trapping, the difference of weighting potentials in 3-D, and for the gain variation of the readout circuitry, energy resolutions of 1.70% (11.3 keV) FWHM and 1.84% (12.2 keV) FWHM were obtained at 662 keV gamma-ray energy on the first and second detectors, respectively, from the whole bulk for single-pixel events. Possible improvements in the detector performance are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：173 / 178

页数：6

共 6 条

[1] CHARGE-TRANSPORT IN ARRAYS OF SEMICONDUCTOR GAMMA-RAY DETECTORS [J].

BARRETT, HH ;

ESKIN, JD ;

BARBER, HB .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :156-159

[2] PIXELLATED CDZNTE DETECTOR ARRAYS [J].

DOTY, FP ;

BARBER, HB ;

AUGUSTINE, FL ;

BUTLER, JF ;

APOTOVSKY, BA ;

YOUNG, ET ;

HAMILTON, W .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 353 (1-3) :356-360

[3] Position-sensitive single carrier CdZnTe detectors [J].

He, Z ;

Knoll, GF ;

Wehe, DK ;

Miyamoto, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 388 (1-2) :180-185

[4] 1-D position sensitive single carrier semiconductor [J].

He, Z ;

Knoll, GF ;

Wehe, DK ;

Rojeski, R ;

Mastrangelo, CH ;

Hammig, M ;

Barrett, C ;

Uritani, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :228-231

[5] POTENTIAL DISTRIBUTION WITHIN SEMICONDUCTOR-DETECTORS USING COPLANAR ELECTRODES [J].

HE, Z .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 365 (2-3) :572-575

[6] Fabrication of CdZnTe strip detectors for large area arrays [J].

Stahle, CM ;

Shi, ZQ ;

Hu, K ;

Barthelmy, SD ;

Snodgrass, SJ ;

Bartlett, LM ;

Shu, PK ;

Lehtonen, SJ ;

Mach, KJ .

HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS, OPTICS, AND APPLICATIONS, 1997, 3115 :90-97

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