کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5493025 | 1526278 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron optics design of an 8-in. spherical MCP-PMT
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electron optics design of an 8-in. spherical MCP-PMT Electron optics design of an 8-in. spherical MCP-PMT](/preview/png/5493025.png)
چکیده انگلیسی
This paper discusses the electron optical system of an 8-in. spherical MCP-PMT. The MCP assembly, the supporting pole and the supply voltages are carefully designed to optimize the photoelectron collection efficiency and the transit time spread. Coating the MCP nickel-chromium electrode with an additional high secondary emission material is employed to make a breakthrough on the collection efficiency. With the simulation software CST, the Finite Integration method and the Monte Carlo method are combined to evaluate the collection efficiency, the time properties and the Earth's magnetic field effects. Simulation results show that the photocathode active solid angle is over 3.5 Ïsr, the average collection efficiency can exceed 95% with the coated MCP and the mean transit time spread is 2.2Â ns for a typical electric potential of 500Â V applied between the photocathode and the MCP input facet. The prototype and the measured single photoelectron spectrum are also presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 848, 11 March 2017, Pages 1-8
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 848, 11 March 2017, Pages 1-8
نویسندگان
Ping Chen, Jinshou Tian, Sen Qian, Tianchi Zhao, Hulin Liu, Yonglin Wei, Xiaofeng Sai, Jianping He, Xing Wang, Yu Lu, Lin Chen, Lehui Guo, Chengquan Pei, Dandan Hui,