کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5493453 | 1526286 | 2016 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simulation of the effects of coated material SEY property on output electron energy distribution and gain of microchannel plates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simulation of the effects of coated material SEY property on output electron energy distribution and gain of microchannel plates Simulation of the effects of coated material SEY property on output electron energy distribution and gain of microchannel plates](/preview/png/5493453.png)
چکیده انگلیسی
To obtain a high spatial resolution of a image intensifier based on microchannel plate (MCP), the long tail in the exit energy distribution of the output electrons (EDOE) is undesirable. The existing solution is increasing the penetration depth of the MCP output electrode, which will result in a serious gain reduction. Coating the MCP output electrode with efficient secondary electron yield (SEY) materials is supposed to be an effective approach to suppress the unfavorable tail component in the EDOE without negative effects on the gain. In our work, a three-dimensional MCP single channel model is developed in CST STUDIO SUITE to systematically investigate the dependences of the EDOE and the gain on the SEY property of the coated material, based on the Finite Integral Technique and Monte Carlo method. The results show that besides the high SEY of the coated material, the low incident energy corresponding to the peak SEY is another essential element affecting the electron yield in the final stage of multiplication and suppressing the output energy spread.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 840, 21 December 2016, Pages 133-138
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 840, 21 December 2016, Pages 133-138
نویسندگان
Lin Chen, Xingchao Wang, Jinshou Tian, Chunliang Liu, Hulin Liu, Ping Chen, Yonglin Wei, Xiaofeng Sai, Jianning Sun, Shuguang Si, Xing Wang, Yu Lu, Liping Tian, Dandan Hui, Lehui Guo,