6-26 Work Summary of Vacuum Group in 2016

• 作者: Meng Jun
• 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: 278-279
• 页数: 2页
• 分类号: O4

摘要

The main works completed by vacuum group in 2016 are as follows.1.Operation and maintenance of HIRFL vacuum system To ensure the normal running of vacuum system of SFC and SSC,a total of more than 15 refrigerators and compressors about CVI,CTI and LEYBOLD have been repaired,a total of 18 adsorbers of helium compressors used for the vacuum system have been replaced,and more than 20 regenerators of cryogenic pumps have been cleaned already,as shown in Fig.1.Moreover,the cooling water systems of compressors used for SFC and SSC have been updated.Now,the pressure of SFC and SSC vacuum systems are 3.8×10^-8 mbar and 2.5×10^-7 mbar respectively.Through the above improvement measures of cryogenic pumps,a great improvement has been achieved compared with the previous vacuum environment.