A capacitive Frisch grid structure for CdZnTe detectors

被引:88
作者
Montémont, G [1 ]
Arques, M [1 ]
Verger, L [1 ]
Rustique, J [1 ]
机构
[1] CEA, LETI CEA Technol Avancees, F-38054 Grenoble 9, France
关键词
D O I
10.1109/23.940065
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Recent results with CdZnTe (CZT) gamma spectrometers have shown that Frisch grid structures yield an excellent performance. Role trapping problems have been solved by this means. However, some difficulties persist concerning optimization of performance in,terms of electronic noise and response uniformity. Also, the complexity of Frisch grid structures makes them hard to manufacture on an industrial scale, This paper presents some results obtained using a new Frisch grid structure based on capacitive coupling. Extremely easy to produce, it allows highly efficient detector screening without leakage current increase.
引用
收藏
页码:278 / 281
页数:4
相关论文
共 8 条
[1]   SIGNAL EVALUATION IN MULTIELECTRODE RADIATION DETECTORS BY MEANS OF A TIME-DEPENDENT WEIGHTING VECTOR [J].
GATTI, E ;
PADOVINI, G ;
RADEKA, V .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1982, 193 (03) :651-653
[2]   Coplanar grid patterns and their effect on energy resolution of CdZnTe detectors [J].
He, Z ;
Knoll, GF ;
Wehe, DK ;
Du, YF .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 411 (01) :107-113
[4]   Performance of CdZnTe geometrically weighted semiconductor Frisch grid radiation detectors [J].
McGregor, DS ;
Rojeski, RA .
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1999, 46 (03) :250-259
[5]   Performance improvement of CdZnTe detectors using modified two-terminal electrode geometry [J].
Parnham, K ;
Szeles, C ;
Lynn, KG ;
Tjossem, R .
HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS, 1999, 3768 :49-54
[6]  
Ramo S., 1939, P IRE, V27, P584, DOI [DOI 10.1109/JRPROC.1939.228757, 10.1109/JRPROC.1939.228757]
[7]   Currents to conductors induced by a moving point charge [J].
Shockley, W .
JOURNAL OF APPLIED PHYSICS, 1938, 9 (10) :635-636
[8]   Optimum spectroscopic performance from CZT γ- and X-ray detectors with pad and strip segmentation [J].
Shor, A ;
Eisen, Y ;
Mardor, I .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 428 (01) :182-192