Plasma performance and operational space with an RMP-ELM suppressed edge
文献类型：期刊论文
| 作者 | Paz-Soldan, C.7; Gu, S.1,6; Leuthold, N.6,7; Lunia, P.7; Xie, P.1; Kim, M. W.8; Kim, S. K.2; Logan, N. C.7; Park, J. -k.3; Suttrop, W.4 |
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 64 |
| 关键词 | tokamak edge localized mode ELM suppression |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ad6014 |
| 通讯作者 | Paz-Soldan, C.(carlos.pazsoldan@columbia.edu) |
| 英文摘要 | The operational space and global performance of plasmas with edge-localized modes (ELMs) suppressed by resonant magnetic perturbations (RMPs) are surveyed by comparing AUG, DIII-D, EAST, and KSTAR stationary operating points. RMP-ELM suppression is achieved over a range of plasma currents, toroidal fields, and RMP toroidal mode numbers. Consistent operational windows in edge safety factor are found across devices, while windows in plasma shaping parameters are distinct. Accessed pedestal parameters reveal a quantitatively similar pedestal-top density limit for RMP-ELM suppression in all devices of just over 3x1019 m-3. This is surprising given the wide variance of many engineering parameters and edge collisionalities, and poses a challenge to extrapolation of the regime. Wide ranges in input power, confinement time, and stored energy are observed, with the achieved triple product found to scale like the product of current, field, and radius. Observed energy confinement scaling with engineering parameters for RMP-ELM suppressed plasmas are presented and compared with expectations from established H and L-mode scalings, including treatment of uncertainty analysis. Different scaling exponents for individual engineering parameters are found as compared to the established scalings. However, extrapolation to next-step tokamaks ITER and SPARC find overall consistency within uncertainties with the established scalings, finding no obvious performance penalty when extrapolating from the assembled multi-device RMP-ELM suppressed database. Overall this work identifies common physics for RMP-ELM suppression and highlights the need to pursue this no-ELM regime at higher magnetic field and different plasma physical size. |
| WOS关键词 | LOCALIZED MODES ; CONFINEMENT ; TRANSPORT ; ENERGY ; DESIGN ; ION |
| 资助项目 | Korean Institute of Fusion Energy ; KSTAR ; AUG, DIII-D |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001274468500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Korean Institute of Fusion Energy ; KSTAR ; AUG, DIII-D |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137271]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Paz-Soldan, C. |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China 2.Princeton Plasma Phys Lab, Princeton, NJ USA 3.Seoul Natl Univ, Dept Nucl Engn, Seoul, South Korea 4.Max Planck Inst Plasma Phys, EURATOM Assoc, Garching, Germany 5.Gen Atom, San Diego, CA 92121 USA 6.Oak Ridge Associated Univ, Oak Ridge, TN USA 7.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA 8.Korea Inst Fus Energy, Daejeon, South Korea |
| 推荐引用方式 GB/T 7714 | Paz-Soldan, C.,Gu, S.,Leuthold, N.,et al. Plasma performance and operational space with an RMP-ELM suppressed edge[J]. NUCLEAR FUSION,2024,64. |
| APA | Paz-Soldan, C..,Gu, S..,Leuthold, N..,Lunia, P..,Xie, P..,...&Willensdorfer, M..(2024).Plasma performance and operational space with an RMP-ELM suppressed edge.NUCLEAR FUSION,64. |
| MLA | Paz-Soldan, C.,et al."Plasma performance and operational space with an RMP-ELM suppressed edge".NUCLEAR FUSION 64(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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