The role of contacts in semiconductor gamma radiation detectors

被引:31
作者
Lachish, U [1 ]
机构
[1] GUMA Sci, IL-76120 Rehovoth, Israel
关键词
gamma; radiation; detectors; ohmic; blocking; contacts;
D O I
10.1016/S0168-9002(97)01100-5
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
It is proposed that the operation of semiconductor gamma radiation detectors, equipped with ohmic contacts, which allow free electron flow between the contacts and bulk material, will not be sensitive to low hole mobility, hole collection efficiency, or hole trapping. Such fast-operating detectors may be readily integrated into monolithic arrays. The detection mechanism and various material aspects are discussed and compared to those of blocking contact detectors. Some suggestions for detector realization are presented. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:417 / 424
页数:8
相关论文
共 41 条
[1]   Low noise gamma-ray and X-ray detectors based on CdTe-materials [J].
Abro, E ;
Johansen, GA .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 377 (2-3) :470-474
[2]   Progress in developing focal-plane-multiplexer readout for large CdZnTe arrays for nuclear medicine applications [J].
Barber, HB ;
Marks, DG ;
Apotovsky, BA ;
Augustine, FL ;
Barrett, HH ;
Butler, JF ;
Dereniak, EL ;
Doty, FP ;
Eskin, JD ;
Hamilton, WJ ;
Matherson, KJ ;
Venzon, JE ;
Woolfenden, JM ;
Young, ET .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :262-265
[3]   ELECTRICAL CHARACTERIZATION AND DETECTION PERFORMANCES OF VARIOUS SEMIINSULATING GAAS CRYSTALS FOR LOW-ENERGY GAMMA-RAYS [J].
BERTOLUCCI, E ;
BOTTIGLI, U ;
COLA, A ;
FANTACCI, ME ;
STEFANINI, A ;
VASANELLI, L .
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1995, 42 (04) :254-257
[4]  
BERWICK K, 1993, MATER RES SOC SYMP P, V302, P363, DOI 10.1557/PROC-302-363
[5]  
Bube RH., 1960, Photoconductivity of Solids
[6]   A gamma camera based on CdTe detectors [J].
Eisen, Y ;
Shor, A ;
Gilath, C ;
Tsabarim, M ;
Chouraqui, P ;
Hellman, C ;
Lubin, E .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :474-478
[8]   Cadmium telluride small probes for gamma-ray spectrometry [J].
HageAli, M ;
Koebel, JM ;
Regal, R ;
Siffert, P ;
Prat, V ;
Simon, H .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 380 (1-2) :427-430
[9]   Signal generation in CdZnTe strip detectors [J].
Hamel, LA ;
Macri, JR ;
Doty, FP .
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1996, 43 (03) :1422-1426
[10]   VERY HIGH-RESOLUTION DETECTION OF GAMMA-RADIATION AT ROOM-TEMPERATURE USING P-I-N DETECTORS OF CDZNTE AND HGCDTE [J].
HAMILTON, WJ ;
RHIGER, DR ;
SEN, S ;
KALISHER, MH ;
JAMES, K ;
REID, CP ;
GERRISH, V ;
BACCASH, CO .
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1994, 41 (04) :989-992