Robustness of the tokamak error field correction tolerance scaling
文献类型：期刊论文
| 作者 | Logan, N. C.1; Park, J-K1; Hu, Q.1; Paz-Soldan, C.2; Markovic, T.3,4; Wang, H. H.5; In, Y.6; Piron, L.7; Piovesan, P.8; Myers, C. E.1,11 |
| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 62 |
| ISSN号 | 0741-3335 |
| 关键词 | error fields ITER tokamak |
| DOI | 10.1088/1361-6587/ab9a12 |
| 通讯作者 | Logan, N. C.(nlogan@pppl.gov) |
| 英文摘要 | This paper presents the subtleties of obtaining robust experimental scaling laws for the core resonant error field threshold that leads to field penetration, locked modes, and disruptions. Recent progress in attempts to project this threshold to new machines has focused on advances in the metric used to quantify the dangerous error fields, incorporating the ideal MHD plasma response in a metric referred to as the 'dominant mode overlap'. However, the scaling of this or any quantity with experimental parameters known to be important for the complicated tearing layer physics requires regressions performed for databases that, for historical reasons, unevenly sample the available parametric space. This paper presents the distribution of the existing internationaln= 1 database and details biases in the available sampling and details the sensitivity of ITER projections to simple least-squares regressions. Downsampling and a simple kernel density estimation weighted regression are used here to demonstrate the difference in projections that acknowledging the machine sampling bias can make. This results in more robust projection to parameters far from the 'usual' devices built thus far. Two multi-device and multi-parameter scalings of the EF threshold in Ohmic and powered plasmas are presented, projecting the threshold to ITER and investigating the impact of sampling biases. |
| WOS关键词 | RESONANT MAGNETIC PERTURBATIONS ; DIII-D ; MHD STABILITY ; LOCKED MODES ; THRESHOLDS |
| 资助项目 | U.S. Department of Energy Office of Science Office of Fusion Energy Sciences[DE-FC02-04ER54698] ; U.S. Department of Energy Office of Science Office of Fusion Energy Sciences[DE-AC02-09CH11466] ; U.S. Department of Energy Office of Science Office of Fusion Energy Sciences[DE-FC02-99ER54512] ; National Key R&D Program of China[2017YFE0301100] ; Czech Science Foundation (GA CR)[19-15229S] ; MEYS of CR[8D15001] ; MEYS of CR[LM2015045] ; project COMPASS-U: Tokamak for cutting-edge fusion research[CZ.02.1.01/0.0/0.0/16_019/0000768] ; European structural and investment funds ; Euratom research and training program 2014-2018 and 2019-2020[633053] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000551846200001 |
| 资助机构 | U.S. Department of Energy Office of Science Office of Fusion Energy Sciences ; National Key R&D Program of China ; Czech Science Foundation (GA CR) ; MEYS of CR ; project COMPASS-U: Tokamak for cutting-edge fusion research ; European structural and investment funds ; Euratom research and training program 2014-2018 and 2019-2020 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/102945]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Logan, N. C. |
| 作者单位 | 1.Princeton Plasma Phys Lab, Princeton, NJ 08540 USA 2.Gen Atom, San Diego, CA 92186 USA 3.Inst Plasma Phys CAS, Za Slovankou 1782-3, Prague 18200, Czech Republic 4.Charles Univ Prague, Fac Math & Phys, Ke Karlovu 3, Prague 12116, Czech Republic 5.Chinese Acad Sci, Inst Plasma Phys, Beijing, Peoples R China 6.Ulsan Natl Inst Sci & Technol, Ulsan, South Korea 7.Culham Ctr Fus Energy, Abingdon, Oxon, England 8.Consorzio RFX, Padua, Italy 9.Max Planck Inst Plasma Phys, Garching, Germany 10.MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA |
| 推荐引用方式 GB/T 7714 | Logan, N. C.,Park, J-K,Hu, Q.,et al. Robustness of the tokamak error field correction tolerance scaling[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2020,62. |
| APA | Logan, N. C..,Park, J-K.,Hu, Q..,Paz-Soldan, C..,Markovic, T..,...&Munaretto, S..(2020).Robustness of the tokamak error field correction tolerance scaling.PLASMA PHYSICS AND CONTROLLED FUSION,62. |
| MLA | Logan, N. C.,et al."Robustness of the tokamak error field correction tolerance scaling".PLASMA PHYSICS AND CONTROLLED FUSION 62(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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