Function of S parameter in gain theory of microchannel plate and simulation of gain performance

Pan Shi; Yonggang Huang; Peng Jiao; Jinsheng Jia; Bingqiang Zhang

doi:10.1117/12.2542600

18 December 2019 Function of S parameter in gain theory of microchannel plate and simulation of gain performance

Pan Shi, Yonggang Huang, Peng Jiao, Jinsheng Jia, Bingqiang Zhang

Proceedings Volume 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications; 113340I (2019) https://doi.org/10.1117/12.2542600
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

The s parameter of the gain theory of microchannel plate directly affects the value of each secondary electron emission coefficient. The electron gain is the accumulation of all secondary electrons, so the s parameter has an important influence on the theoretical value of the electron gain. In this paper, two kinds of clad glass and the same core glass materials are used to fabricate two kinds of microchannel plates under the same process conditions, and measured the electronic gain values. Meanwhile, the theoretical model of the electronic gain of the microchannel plates is established by Monto Carlo stochastic mathematical method, and the s parameters of two kinds of microchannel plates were fitted by the model combined with the measured electronic gain values. On the fitted value of S parameters, the variation of the microchannel plates gain and electron transit time with the microchannel plates applied voltage at both ends, channel bias angle, channel length-to-diameter ratio and output electrode penetration depth is simulated, and compared with the corresponding measured results, the coincidence is high. The relationship between electron gain with bias angle and output electrode depth, and the relationship between Gain with Length/Diameter ratio under different voltage is obtained. Besides, this paper get the relationship between Electron transit time and Full width at half maximum (FWHM) with the different Voltages. The results of this study provide support for the calculation of theoretical electron gain of microchannel plates in different clad glass systems.

Citation Download Citation

Pan Shi, Yonggang Huang, Peng Jiao, Jinsheng Jia, and Bingqiang Zhang "Function of S parameter in gain theory of microchannel plate and simulation of gain performance", Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113340I (18 December 2019); https://doi.org/10.1117/12.2542600

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KEYWORDS

Microchannel plates

Glasses

Electrodes

Monte Carlo methods

Electron transport

Device simulation

Mathematical modeling

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