The Collection Efficiency of a Large Area PMT Based on the Coated MCPs
The Collection Efficiency of a Large Area PMT Based on the Coated MCPs
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DOI：
10.2478/msr-2022-0030
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发表时间：
2022-10-01
影响因子：
0.9
通讯作者：
Wang, Yunji
中科院分区：
文献类型：
--
作者：
Wang, Xingchao;Chen, Lin;Wang, Yunji
基于微通道板的光电倍增管（MCP PMT）的电子收集效率（CE）受到MCP开口面积分数的限制。在微通道板上涂覆高二次屈服材料是提高微通道板电性能的有效途径。开发了典型的和涂层的MCP-光电倍增管。提出了一种相对测量方法来表征收集效率性能。实验结果表明，基于该膜系的光电倍增管具有很好的增益均匀性和能量分辨率。
The electron collection efficiency (CE) of the photomultiplier tube based on microchannel plates (MCP-PMT) is limited by the MCP open area fraction. Coating MCP with a high secondary yield material is supposed to be an effective approach to improve CE. Both typical and coated MCP-PMTs are developed. A relative measurement method is proposed to characterize the collection efficiency performance. Results show that the PMT based on the coated MCPs has a significant improvement on CE, a good gain uniformity and a high precise energy resolution.