Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (1): 010406 doi: 10.13538/j.1001-8042/nst.25.010406

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles     Next Articles

Performance simulation and structure design of Binode CdZnTe gamma-ray detector

NIU Li-Bo , LI Yu-Lan ,  ZHANG Lan , FU Jian-Qiang , JIANG Hao , HE Bin , LI Yuan-Jing   

  1. 1Department of Engineering Physics, Tsinghua University, Beijing 100084, China
    2Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China
    3Xi’an Research Institute of Hi-Tech, Hongqing Town, Xi’an 710025, China
    4Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China
    5Nuclear Company Limited, Beijing 100084, China
  • Contact: LI Yu-Lan E-mail:yulanli@mail.tsinghua.edu.cn
PDF ShareIt Export Citation
NIU Li-Bo, LI Yu-Lan,  ZHANG Lan, FU Jian-Qiang, JIANG Hao, HE Bin, LI Yuan-Jing. Performance simulation and structure design of Binode CdZnTe gamma-ray detector.Nuclear Science and Techniques, 2014, 25(1): 010406     doi: 10.13538/j.1001-8042/nst.25.010406

Abstract:

A new electrode structure CdZnTe detector named Binode CdZnTe has been proposed in this paper. Together with the softwares of MAXWELL, GEANT4, and ROOT, the charge collection process and its gamma spectrum of the detector have been simulated and the detector structure has been optimized. In order to improve its performance further, Compton scattering effect correction has been used. The simulation results demonstrate that with refined design and Compton scattering effect correction, Binode CdZnTe detectors is capable of achieving 3.92% FWHM at 122 keV, and 1.27% FWHM at 662 keV. Compared with other single-polarity (electron-only) detector configurations, Binode CdZnTe detector offers a cost effective and simple structure alternative with comparable energy resolution.

Key words: Cadmium Zinc Telluride, CdZnTe, Binode CdZnTe detectors, Gamma-ray detector, Energy resolution