| 非蒸散型吸气剂对混合气体的抽气行为研究 |
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| 引用本文： | 陈丽萍,蒋迪奎.非蒸散型吸气剂对混合气体的抽气行为研究[J].真空科学与技术学报,2004,24(3):225-229. |
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| 作者姓名： | 陈丽萍 蒋迪奎 |
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| 作者单位： | 上海原子核研究所,上海,201800 |
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| 摘 要： | NEG抽除混合气体的行为不同于抽单纯气体.测试了SEAS公司的NEG组件ST707WP 1250对由80%H2和20%CO组成的混合气体的抽气性能,并和抽纯气性能进行了比较.混合气体中的NEG对H2的抽速受CO影响,随H2吸气量的增加而明显下降.混合气体中的NEG对CO的抽速不受H2影响.研究结果为SSRF储存环真空系统设计提供了重要依据.
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| 关 键 词： | 混合气体 抽气性能 |
| 文章编号： | 1672-7126(2004)03-0225-05 |
| 修稿时间： | 2003年9月15日 |
Pumping Characteristics of Mixed Gases with Non-Evaporation Getter |
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| Chen Liping and Jiang Dikui.Pumping Characteristics of Mixed Gases with Non-Evaporation Getter[J].JOurnal of Vacuum Science and Technology,2004,24(3):225-229. |
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| Authors: | Chen Liping and Jiang Dikui |
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| Abstract: | Mixed gaseous (80% H 2 and 20% CO) were pumped by activating a non evaporation getter (NEG) to see how different it behaves when used to pump a pure gas.We found that NEG significantly reduces the pumping speed of H 2 with an increase of H 2 absorption,whereas it little affects the pumping speed of CO.Our finding is of some technical interest in designing the vacuum system of the storage ring in Shanghai Synchrotron Radiation Facility (SSRF). |
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| Keywords: | NEG |
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