清洁和表面特性
Cleaning and Surface Properties
摘要：
综述了超高真空精密清洗的原理和表面清洁度的评价技术。方法来验证清洁程序的有效性。举例说明包装和储存对清洗后表面再污染的影响。最后，一些相关的表面性质，如次级电子发射和润湿性，污染的影响，提出。这篇文章是先前为CAS学院发表的关于加速器真空的2006年文章的更新和缩短版本。
英文摘要：
Principles of the precision cleaning dedicated to ultra-high vacuum applications are reviewed together with the techniques for the evaluation of surface cleanliness. Methods to verify the effectiveness of cleaning procedures are addressed. Examples are presented to illustrate the influence of packaging and storage on the recontamination of the surface after cleaning. Finally, the effect of contamination on some relevant surface properties, such as secondary electron emission and wettability, is presented. This article is an updated and shortened version of the one previously published for the CAS school on the vacuum of accelerators 2006.
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