Optical optimization for anti-coincidence detectors of a Hard X-ray Modulation Telescope

详细信息    查看全文

• 作者：Yun-Long Li^a ; Chen Zhang^b ; ^{chzhang@bao.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Zhao Zhang^a ; Min-Xue Fu^a ; Yi-Bao Chen^a ; Dong-Hua Zhao^b ; Jing-Kang Deng^c ; Ren-Cheng Shang^a
• 关键词：HXMT ; Anti-coincidence detectors ; Plastic scintillator ; Optical design
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2016
• 出版时间：11 January 2016
• 年：2016
• 卷：806
• 期：Complete
• 页码：206-211
• 全文大小：1197 K

文摘

The anti-coincidence detectors of Hard X-ray Modulation Telescope (HXMT) are designed to suppress the X-ray background induced by incident charged cosmic-ray particles. The main components of anti-coincidence detectors are thin flat plastic scintillators. In this work we apply the TracePro program to study the light transfer features in the scintillators, and we propose several optimized reflector configurations to significantly improve the light transfer efficiency. The simulation results are verified by measurements of the detector prototypes. We chose a particular optimized reflector configuration.