表面と真空
Online ISSN : 2433-5843
Print ISSN : 2433-5835
特集「2018年日本表面真空学会学術講演会特集号II」
二次元ビームプロファイルモニタのためのガス分布測定装置の開発
山田 逸平荻原 徳男引地 裕輔神谷 潤一郎金正 倫計
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2019 年 62 巻 7 号 p. 400-405

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The non-destructive beam profile monitor is needed for high intensity accelerators to avoid radioactivation of the systems. A monitor system with sheet-shaped gas to measure two-dimensional (2-D) transverse beam profile nondestructively is under development. However, one of issues for realistic implementation of the monitor exists with non-uniform nature of the gas distribution. To obtain a correct beam profile, measurement of the gas distribution is indispensable because signal from the monitor is in proportional to both beam intensity and gas distribution. To measure the three-dimensional gas distribution, a system for analyzing the distribution of ions produced through gas interactions with beam has been developed. This system consists of an electron gun for producing ideal narrow beam, electrodes to form a parallel electric field toward micro-channel plate, and a phosphor screen. The experimental result by using a gas jet nozzle agreed well with the simulation.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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