A capacitive Frisch grid structure for CdZnTe detectors

Author

Montemont, Guillaume ; Argues, M. ; Verger, Loick ; Rustique, Jacques

Author_Institution

Lab d´´Electron. et de Technol. de l´´Inf., CEA, Centre d´´Etudes Nucleaires de Grenoble, France

Volume

1

fYear

2000

fDate

2000

Firstpage

42469

Abstract

Recent results with CdZnTe (CZT) gamma spectrometers have shown that Frisch grid structures lead to excellent performances. Hole trapping problems have been solved by this mean. Some difficulties remain in order to optimize performance in terms of electronic noise and response uniformity. Frisch grid structures also stay hard to manufacture at an industrial scale because of their complexity. We present here some results obtained with a new Frisch grid structure based on capacitive coupling. Extremely easy to produce, it makes possible a highly efficient detector screening without leakage current increase

Keywords

gamma-ray detection; gamma-ray spectrometers; hole traps; semiconductor counters; semiconductor device noise; CdZnTe; CdZnTe detectors; capacitive Frisch grid structure; capacitive coupling; electronic noise; gamma spectrometers; hole trapping; leakage current; response uniformity; Conductivity; Detectors; Dielectrics; Electrodes; Equations; Gunshot detection systems; Leak detection; Leakage current; Semiconductor device noise; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2000 IEEE

Conference_Location

Lyon

ISSN

1082-3654

Print_ISBN

0-7803-6503-8

Type

conf

DOI

10.1109/NSSMIC.2000.949038

Filename

949038