Novel differential pumping system with extended sampling range: Design and application in the EAST tokamak
文献类型：期刊论文
| 作者 | Sun, Hao1,2; Yu, Yaowei2 ; Wang, Chao2; Pan, Hao2; Fan, Bin2; Cao, Bin2; Zuo, Guizhong2; Hu, Jiansheng2
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| 刊名 | VACUUM
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| 出版日期 | 2024-09-01 |
| 卷号 | 227 |
| 关键词 | Differential pumping system DPS helium and deuterium measurement Quadruple mass spectrometer |
| ISSN号 | 0042-207X |
| DOI | 10.1016/j.vacuum.2024.113382 |
| 通讯作者 | Yu, Yaowei(yuyaowei@ipp.ac.cn) |
| 英文摘要 | A novel differential pumping system (DPS) with an adjustable sampling rate has been developed and implemented in the Experimental Advanced Superconducting Tokamak (EAST). This system is equipped with a highresolution quadrupole mass spectrometer (QMS), covering a mass range of 1-16 atomic mass units (AMU), alongside a conventional QMS with a broader range of 1-200 AMU. The DPS features a dynamic pressure sampling capability from 10-2 to 105 Pa, utilizing a gas dosing valve and an angle valve, enabling a wide gas sampling ratio range of 10-9 to 3 x 10-2. The high-resolution QMS (QMG700) is adept at directly quantifying the partial pressures of deuterium and helium within mixtures, while the conventional QMS (RGA200) offers indirect measurement of D2 partial pressures above 2 x 10-5 Pa, complemented by direct wide-range mass analysis. During the EAST tokamak campaigns of 2023 and 2024, the DPS was effectively utilized for glow discharge cleaning (GDC) at a pressure of 3 Pa and ion cyclotron wall conditioning (ICWC) at approximately 3 x 10-3 Pa, accurately distinguishing deuterium pressure from the helium environment in the wide pressure range of vacuum vessel. Moreover, the DPS was successfully employed to trace the vacuum leak location in EAST campaign with a pressure of up to hundreds Pa. This DPS is a key tool for gas ingredient analysis and leak detection in the EAST campaigns, providing a valuable reference for the vacuum operation of future fusion reactors. |
| 资助项目 | Nature Science Foundation of Anhui Province[2208085MA15] ; National Magnetic Confinement Fusion Science Program of China[2022YFE03100003] ; National Key Research and Development Program of China[2022YFE03130000] ; National Nature Science Foundation of China[12105322] ; National Nature Science Foundation of China[11905138] ; National Nature Science Foundation of China[11905148] ; National Nature Science Foundation of China[11905254] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001263842500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Nature Science Foundation of Anhui Province ; National Magnetic Confinement Fusion Science Program of China ; National Key Research and Development Program of China ; National Nature Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136977]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Yu, Yaowei |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Hao,Yu, Yaowei,Wang, Chao,et al. Novel differential pumping system with extended sampling range: Design and application in the EAST tokamak[J]. VACUUM,2024,227. |
| APA | Sun, Hao.,Yu, Yaowei.,Wang, Chao.,Pan, Hao.,Fan, Bin.,...&Hu, Jiansheng.(2024).Novel differential pumping system with extended sampling range: Design and application in the EAST tokamak.VACUUM,227. |
| MLA | Sun, Hao,et al."Novel differential pumping system with extended sampling range: Design and application in the EAST tokamak".VACUUM 227(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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