First result of CRDS system with cesium operation for radiofrequency negative ion source test facility at ASIPP
文献类型：期刊论文
| 作者 | Liang, Lizhen ; Hu, Chundong; Liu, Wei; Wei, Jianglong; Xu, Yongjian; Jiang, Caichao; Zhao, Yuanzhe; Xie, Yahong; Xie, Yuanlai
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| 刊名 | FUSION ENGINEERING AND DESIGN
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 166 |
| 关键词 | Cavity ring-down spectroscopy Negative ion source Hydrogen negative ions Neutral beam injection |
| ISSN号 | 0920-3796 |
| DOI | 10.1016/j.fusengdes.2021.112266 |
| 通讯作者 | Hu, Chundong(cdhu@ipp.ac.cn) |
| 英文摘要 | From September 2017, an advance study project of Negative ion-based Neutral Beam Injection (NNBI) prototype for the China Fusion Engineering Test Reactor (CFETR) was supported by the ministry of science and technology of China. The entire test facility will be integrated at Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). In order to meet requirement of the development of negative ion based neutral beam injection system for CFETR, a negative ion source test facility with radio frequency source is being built. At the same time, cavity ring-down spectroscopy (CRDS) is employed for measurement of negative ion density. CRDS is an ultrasensitive absorption diagnostic technique for density measurement. Based on photo-detachment process of hydrogen negative ions, CRDS can measure integrated line-of-sight density of hydrogen negative ions in high power ion source. In this paper, the principle of CRDS diagnostic system has been introduced. Based on previous tests, the system setup and improvement are mentioned. In this paper, typical ring-down signals and time evolution of density of hydrogen negative ions are reported. With the first time cesium seeding, density of hydrogen negative ions increased obviously. It increased from 6.3E15 m(-3) to 1.8E16 m(-3), about 2.8 times under the 40 kW RF power discharge. Several days condition up, the density of hydrogen negative ions is up to 3.4 E16 m(-3) under the 50 kW RF power discharge. |
| WOS关键词 | RING-DOWN SPECTROSCOPY ; DESIGN |
| 资助项目 | National Natural Science Foundation of China[11675216] ; National Natural Science Foundation of China[11705229] ; National Natural Science Foundation of China[11605234] ; National Natural Science Foundation of China[11975264] ; National Key R&D Program of China[2017YFE300103] ; National Key R&D Program of China[2017YFE300503] ; Comprehensive Research Facility for Fusion Technology[2018-000052-73-01-001228] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000640897800003 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China ; Comprehensive Research Facility for Fusion Technology |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122429]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Chundong |
| 作者单位 | Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Lizhen,Hu, Chundong,Liu, Wei,et al. First result of CRDS system with cesium operation for radiofrequency negative ion source test facility at ASIPP[J]. FUSION ENGINEERING AND DESIGN,2021,166. |
| APA | Liang, Lizhen.,Hu, Chundong.,Liu, Wei.,Wei, Jianglong.,Xu, Yongjian.,...&Xie, Yuanlai.(2021).First result of CRDS system with cesium operation for radiofrequency negative ion source test facility at ASIPP.FUSION ENGINEERING AND DESIGN,166. |
| MLA | Liang, Lizhen,et al."First result of CRDS system with cesium operation for radiofrequency negative ion source test facility at ASIPP".FUSION ENGINEERING AND DESIGN 166(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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