| Title | Impact of impurities on drift wave instabilities in reversed-field pinch plasmas |
| Author | |
| Corresponding Author | Li, Jingchun |
| Publication Years | 2022-10-12
|
| DOI | |
| Source Title | |
| ISSN | 2470-0045
|
| EISSN | 2470-0053
|
| Volume | 106Issue:4 |
| Abstract | The drift wave in the presence of impurity ions was investigated numerically in reversed-field pinch plasmas, using the gyrokinetic integral eigenmode equation. By comparing the results of regular and hollow plasma density profiles, it was found that the ion temperature gradient mode for the hollow density profile case is much harder to excite. For the impurity effects, when the impurity density gradient is opposite to the electrons, namely when L-ez (L-ez = L-ne/L-nz with 1/L-n being the density gradient scale length, and the subscript "e" and "z" indicates electrons and impurity ions, respectively) is negative, the impurities can enhance the instability. On the contrary, when L-ez is positive, the instability is stabilized. Regarding the trapped electron mode (TEM), the growth rate for plasmas with a hollow density profile remains smaller than that of the standard density gradient. There exists a threshold in L-ez. When L(ez )is less than this value, the impurities destabilize the TEMs, while when L-ez is greater than this value, the impurities stabilize the TEMs. In addition, the influence of the collisionality on the TEMs was also studied. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | [11905109]
; [11905080]
; [12275354]
; [11947238]
; [2018YFE0303102]
; [2017YFE0301702]
|
| WOS Research Area | Physics
|
| WOS Subject | Physics, Fluids & Plasmas
; Physics, Mathematical
|
| WOS Accession No | WOS:000871073200005
|
| Publisher | |
| ESI Research Field | PHYSICS
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/406844 |
| Department | Department of Earth and Space Sciences |
| Affiliation | 1.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Guangdong, Peoples R China 2.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 3.ENN Sci & Technol Dev Co Ltd, Langfang 065001, Peoples R China 4.Civial Aviat Univ China, Coll Sci, Tianjin 300300, Peoples R China 5.United Kingdom Atom Energy Author, Culham Ctr Fus Energy, Culham Sci Ctr, Abingdon OX14 3DB, England |
| First Author Affilication | Department of Earth and Space Sciences |
| Corresponding Author Affilication | Department of Earth and Space Sciences |
| First Author's First Affilication | Department of Earth and Space Sciences |
| Recommended Citation GB/T 7714 |
Li, Jingchun,Liu, Songfen,Zhang, Yilong,et al. Impact of impurities on drift wave instabilities in reversed-field pinch plasmas[J]. PHYSICAL REVIEW E,2022,106(4).
|
| APA |
Li, Jingchun,Liu, Songfen,Zhang, Yilong,Dong, Jiaqi,Kong, Wei,&Shi, P..(2022).Impact of impurities on drift wave instabilities in reversed-field pinch plasmas.PHYSICAL REVIEW E,106(4).
|
| MLA |
Li, Jingchun,et al."Impact of impurities on drift wave instabilities in reversed-field pinch plasmas".PHYSICAL REVIEW E 106.4(2022).
|
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