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May 21 – 26, 2017
Beijing International Convention Center
Asia/Shanghai timezone

Auto-feedback control system for microchannel plate electron scrubbing

Not scheduled
15m
Beijing International Convention Center

Beijing International Convention Center

No.8 Beichen Dong Road, Chaoyang District, Beijing P. R. China 100101
Poster Photon detectors

Speaker

Mr yang yu (institute of high energy physics chinese academy of sciences)

Description

Electron scrubbing is an important process for microchannel plates (MCP) production to clean residual gas in microchannel wall, which will reduce ion feedback and improve gain stability. This manuscript has designed an auto-feedback control system for MCP electron scrubbing, including surface electron source, power supply and auto-control system. The surface electron source is hot electrons produced by electron gun. In order to obtain stable output current of MCP, the auto-control system adjusts filament current of electron gun according to the variation of output current of MCP. The experiment result shows the output current follows the given parameters and the system works well, therefore, suitable electron scrubbing charge for MCP will be obtained.

Primary author

Mr yang yu (institute of high energy physics chinese academy of sciences)

Co-authors

Prof. baojun yan (institute of high energy physics chinese academy of sciences) Mr kaile wen (institute of high energy physics chinese academy of sciences) Prof. shulin liu (institute of high energy physics chinese academy of sciences) Ms yuzhen yang (institute of high energy physics chinese academy of sciences)

Presentation materials

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