A compact gamma-ray detector using wavelength-shifting fibers coupled to YAP scintillation crystal

作者：Zhu Jie; Ma Hongguang; Ma Wenyan; Zeng Hui^*; Wang Zhaomin; Xu Zizhong

来源：Nuclear Science and Techniques, 2008, 19(1): 45-49.

DOI：10.1016/S1001-8042(08)60020-2

• Monte-Carlo simulation
• WSF
• spatial resolution

The performance of a compact position sensitive gamma-ray detector based on wavelength-shifting fibers coupled to YAlO(3):Ce scintillation crystal was evaluated using a Monte-Carlo simulation method. The simulation model has been setup using the GEANT4 codes. Compared with the gamma-ray detector based on the YAlO(3):Ce scintillation crystal coupled to Hamamastu R2486 position sensitive photomultiplier tube, the results indicate that the gamma-ray detector based on wavelength-shifting fibers readout has good position linearity, good spatial resolution and larger effective field of view. The image and point spread function of measured point were presented. The spatial resolution response as a function of position was obtained. The factors influencing spatial resolution and position linearity were discussed.

• 出版日期2008-2-20
• 单位中国人民解放军火箭军工程大学; 中国科学技术大学