Test and simulation of a Cherenkov picosecond timing counter
Test and simulation of a Cherenkov picosecond timing counter
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切伦科夫皮秒计时计数器的测试与仿真
DOI：
10.1016/j.nima.2020.163838
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Zhengguo Zhao
中科院分区：
文献类型：
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作者：
Ziwei Li;Xin Li;Qiang Cao;Cheng Li;Yonggang Wang;Jianbei Liu;Ming Shao;Haiping Peng;Xu Wang;Yi Zhou;Zhengguo Zhao
为了研究皮秒计时技术，研制了一种结构紧凑、计时速度快、材料成本相对较低的计数器。该样机由切伦科夫辐射器、微通道板光电倍增管（MCP PMT）和快速读出电路组成。读出电路由可编程差分放大器、多阈值差分放大器和在现场可编程门阵列（FPGA）中实现的时间戳时间数字转换器组成。束流测试表明，它可以实现约10ps的优良的时间分辨率。它的定时性能也通过Geant4仿真框架进行了评估。试验结果与仿真结果基本一致，但仍有改进的空间.
To study the picosecond timing technology, a counter with compact structure, fast timing, and relatively low material budget has been developed. The prototype is composed of Cherenkov radiator, micro-channel plate photoelectron multiplier tube (MCP-PMT), and fast readout electronics. The readout electronics consists of a programmable differential amplifier, a multi-threshold differential discriminator, and a timestamp Time-to-Digital converter implemented in a field-programmable gate array (FPGA). The beam test demonstrates that it can achieve an excellent time resolution around 10ps. Its timing performance is also evaluated by a Geant4 simulation framework. The test and simulation result are consistent and there is still potential for improvement.