Simulation design of capacitive Frisch grid CdZnTe detectors

Author

Jun, Xia ; Wenbin, Sang ; Yongbiao, Qian ; Jiahua, Min ; Jianyong, Teng ; Xiaoyan, Liang

Author_Institution

Sch. of Mater. Sci. & Eng., Shanghai Univ.

fYear

2006

fDate

27-28 June 2006

Firstpage

311

Lastpage

314

Abstract

CdZnTe (CZT) capacitive Frisch grid detector has increasingly captured the recent research interests in room temperature gamma-ray detection applications. The geometrical parameters of the detector have an important role in improving the detector performance. In this paper, the design parameters were optimized through finite element simulation, based on a 3-dimensional weighting potential analysis. The optimized parameters with a ratio of L/H of about 80% and d/8r <0.1mm were obtained. In addition, for the same ratio of L/H and d/er, model B with 5times5times10 mm³ could get better performance than model A with 8times8times10mm³

Keywords

cadmium compounds; capacitive sensors; finite element analysis; particle detectors; zinc compounds; 3D weighting potential analysis; CdZnTe; CdZnTe detectors; capacitive Frisch grid; design parameters optimization; finite element simulation; simulation design; Analytical models; Conductors; Electrodes; Electron traps; Finite element methods; Gamma ray detection; Gamma ray detectors; Insulation; Solid modeling; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

High Density Microsystem Design and Packaging and Component Failure Analysis, 2006. HDP'06. Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0488-6

Type

conf

DOI

10.1109/HDP.2006.1707613

Filename

1707613