6-27 Device Design and Experimental Research of Desorption Yields of Oxygen-Free Copper

• 作者: Dong Zhiqiang Li Peng Luo Cheng Meng Jun Xie Wenjun
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 年，卷（期）: 2016,（1）
• 页码范围: 279-281
• 页数: 3页
• 分类号: O4

摘要

The beam bombards with the vacuum chamber walls and desorbs a certain amount of molecules and ions from the surface of the chamber,which will destroy the system’s dynamic vacuum and limit the beam lifetime[1,2].In order to reduce the effect on the dynamic vacuum,it is necessary to find a low desorption material as a collimator coating material[3].Firstly,based on the 320 kV high charge states ion experimental platform designed the measurement device of desorption yields.The experiment device,which layout is shown in Fig.1,is installed behind 320 kV experimental platform.The main equipments are vacuum chambers,molecular pumps,fluorescent targetsvacuum gauges,and so on.