Monte Carlo Simulation of a CZT Detector

Abstract

CZT detector is one of the most promising radiation detectors for hard X-ray and gamma-ray measurement. The energy spectrum of CZT detector has to be simulated to optimize the detector design. A CZT detector was fabricated with dimensions of 5x5x2 mm(3). A Peltier cooler with a size of 40x40 mm(2) Was installed below the fabricated CZT detector to reduce the operation temperature of the detector. Energy spectra of were measured with 59.5 keV gamma-ray From Am-241. A Monte Carlo code was developed to simulate the CZT energy spectrum, which was measured with a planar-type CZT detector, and the result was compared with the measured one. The simulation was extended to the CZT detector with strip electrodes.