The study of linearity and detection efficiency for 20'' photomultiplier tube
The study of linearity and detection efficiency for 20'' photomultiplier tube
复制标题
20英寸光电倍增管线性度和检测效率的研究
DOI：
10.1007/s41605-018-0088-5
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发表时间：
2019
影响因子：
0.6
通讯作者：
Yang Qun Ou
中科院分区：
文献类型：
--
作者：
Yang Anbo;Wang Zhimin;Qin Zhonghua;Luo Fengjiao;Heng Yuekun;Zhang Haiqiong;Xu Meihang;Yang Qun Ou
Background The linearity and photon detection efficiency (PDE) are important parameters of photomultiplier tube (PMT), which need to be precisely measured with suitable techniques. Purpose To search good methods for linearity and PDE study of newly developed 20-inch PMT. Methods In this paper, we setup a testing system to use the average photoelectrons (P.E.) in pulse mode for linearity measurement with the result corrected for strong light. For the PDE measurement, we developed a relative method with a reference PMT whose efficiency is known to compare the measured PDE with both average charge and hit numbers. Results The measurements of PMT shows only 5% nonlinearity within 1000 P.E. and good PDE, the result of linearity's corrected definition is closer to the real status of PMT. Conclusions The results show good charge and linearity response for newly developed 20-inch MCP PMT and dynode PMT. The testing techniques discussed in this paper are suitable for the study of PDE and linearity.
