Effect of surface polishing and vacuum firing on electron stimulated desorption from 316LN stainless steel
Effect of surface polishing and vacuum firing on electron stimulated desorption from 316LN stainless steel
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DOI：
10.1116/1.4887035
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
O. Malyshev;B. Hogan;M. Pendleton
中科院分区：
文献类型：
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作者：
O. Malyshev;B. Hogan;M. Pendleton
在真空技术中，通过表面抛光或真空烧制来减少不锈钢的热除气是众所周知的，因此这两种技术的使用可以进一步减少除气。本研究的目的是确定表面抛光和真空烧制对减少316LN不锈钢的电子刺激解吸（ESD）的有效性，316LN不锈钢是粒子加速器真空室和部件的常用材料。研究发现，与热除气不同，表面抛光不会降低ESD产率，甚至可能增加其产率，而未抛光样品的真空烧制只会使H2的ESD产率降低2倍。
The reduction of thermal outgassing from stainless steel by surface polishing or vacuum firing is well-known in vacuum technology, and the consequent use of both techniques allows an even further reduction of outgassing. The aim of this study was to identify the effectiveness of surface polishing and vacuum firing for reducing electron-stimulated desorption (ESD) from 316LN stainless steel, which is a frequently used material for particle accelerator vacuum chambers and components. It was found that, unlike for thermal outgassing, surface polishing does not reduce the ESD yield and may even increase it, while vacuum firing of nonpolished sample reduces only the H2 ESD yield by a factor 2.