摘要
文章介绍了超广角切伦科夫望远镜原理样机数据获取系统设计方案和初步测试结果。望远镜原理样机数据获取系统采用NIM(Nuclear Instrumentation Module)标准插件+SCD(Switched Capacitor Digitizer)并行阵列形式,该系统具有高灵敏度、低噪声、快速触发(<30ns)、快速存储等优点。西藏羊八井观测站测试结果显示,该套数据获取系统成功观测到宇宙线事例,能够满足望远镜和闪烁体阵列,符合观测宇宙线的设计需求。
Design scheme and preliminary test results of Data Acquisition (DAQ) system of principle prototype with super wide Field-of-View (FoV) Atmospheric Cherenkov Telescope were introduced. The Cherenkov Telescope principle prototype uses classical NIM ((Nuclear Instrumentation Module) combined withparallel array form of SCD (Switched Capacitor Digitizer). The DAQ system has advantages of high sensitivity, low noise, fast triggering (〈30ns), and high-speed storage. The preliminary test resuhs we measured at the Yangbajing station in Tibet showed the DAQ system successfully detected the cosmic rays at this station, and which proved that our designed telescope and scintillator array fulfilled the requirement for detecting cosmic rays.
基金
2016年度国家自然科学基金项目"面向GRBs和时变源观测的高海拔地基广角切伦科夫望远镜原理样机研制"(项目号:11563007)
2013年度教育部科学技术类项目"在西藏建立更高海拔(>5000m)宇宙线观测站相关问题的研究"(项目号:213036A)
2016年度西藏自治区自然科学基金项目"西藏羊八井高海拔地基超广角大气切伦科夫望远镜成像和数据获取系统研制"(项目号:2016ZR-TU-12)阶段性成果
关键词
数据获取系统
超广角切伦科夫望远镜
闪烁体阵列
宇宙线
Data Acquisition (DAQ) system
Super wide Field-of-View Atmospheric Cherenkov Telescope
Scintillator Array
Cosmic Rays