Observation of non-thermal metastable ion velocity distributions in a miniaturized multi-dipole confined plasma device
文献类型：期刊论文
| 作者 | Jiang, Di1; Yip, Chi-Shung1; Jin, Chen-Yao1,2; Zhang, Wei1 ; Wang, Liang1; Xu, Guo-Sheng1
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 29 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0090948 |
| 通讯作者 | Yip, Chi-Shung(csyip@ipp.ac.cn) |
| 英文摘要 | Hot cathode discharges are common plasma sources for fundamental plasma physics studies and other applications due to their capability to produce quiescent plasma. This work presents experimental observations of presheath-associated non-thermal metastable ion velocity distributions in a miniaturized multi-dipole confined plasma device measured by laser-induced fluorescence. The intensity of this non-Maxwellian component is related to the collisions of these metastable ions with background particles. Additionally, the flow velocity of this component is lower than the Bohm velocity; thus, its energy is lower than the presheath potential drop kT(e)/2. This implies that these non-thermal metastable ion velocity distributions are formed via presheath acceleration and are associated with the source asymmetries of the miniaturized device. The strength decreases as the neutral pressure increases once the neutral pressure is adjusted, suggesting that the presheath length is the critical condition that determines whether these components can be observed. Published under an exclusive license by AIP Publishing. |
| WOS关键词 | LASER-INDUCED FLUORESCENCE ; SHEATH |
| 资助项目 | National Natural Science Foundation of China[11875285] ; President Funding of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJ2022QN19] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AIP Publishing |
| WOS记录号 | WOS:000811841900005 |
| 资助机构 | National Natural Science Foundation of China ; President Funding of Hefei Institutes of Physical Science, Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129544]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Yip, Chi-Shung |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Di,Yip, Chi-Shung,Jin, Chen-Yao,et al. Observation of non-thermal metastable ion velocity distributions in a miniaturized multi-dipole confined plasma device[J]. PHYSICS OF PLASMAS,2022,29. |
| APA | Jiang, Di,Yip, Chi-Shung,Jin, Chen-Yao,Zhang, Wei,Wang, Liang,&Xu, Guo-Sheng.(2022).Observation of non-thermal metastable ion velocity distributions in a miniaturized multi-dipole confined plasma device.PHYSICS OF PLASMAS,29. |
| MLA | Jiang, Di,et al."Observation of non-thermal metastable ion velocity distributions in a miniaturized multi-dipole confined plasma device".PHYSICS OF PLASMAS 29(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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