Enhancement of edge turbulence concomitant with ELM suppression during boron powder injection in EAST
文献类型：期刊论文
| 作者 | Sun, Z.1 ; Maingi, R.1; Diallo, A.1; Xu, W.2; Qian, Y. Z.3; Tritz, K.4; Ye, Y.2; Li, C. L.5; Xu, Z.5; Wang, Y. F.5
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| 刊名 | PHYSICS OF PLASMAS
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| 出版日期 | 2021-08-01 |
| 卷号 | 28 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0058809 |
| 通讯作者 | Sun, Z.(zsun@pppl.gov) ; Zuo, G. Z.(zuoguizh@ipp.ac.cn) ; Hu, J. S.(hujs@ipp.ac.cn) |
| 英文摘要 | A reproducible, quasi-stationary edge localized mode (ELM)-suppressed scenario was obtained over a wide range of plasma parameters by continuous injection of boron (B) powder into an upper-single null discharge in the experimental advanced superconducting tokamak [Sun et al., Nucl. Fusion 61, 014002 (2021)]. This powder-induced ELM-absent regime is associated with an edge harmonic mode (EHM) that provides continuous particle exhaust to maintain constant density without confinement degradation and impurity accumulation, the latter of which is often observed in ELM-free regimes. A flow rate threshold of B powder injection, leading to a threshold intensity of the EHM, is necessary for full ELM suppression. The fundamental harmonic of the EHM exhibits a toroidal mode number n = 1. The mode is observable in the entire poloidal cross section with a peak near the upper X-point in an upper-single null configuration. The EHM spans radially across the pedestal and scrape-off layer, peaking inside the separatrix. The EHM appears to be insensitive to q(95), heating power, plasma toroidal rotation, and pedestal collisionality. |
| WOS关键词 | DIII-D ; MODE PLASMAS ; H-MODE ; CONFINEMENT |
| 资助项目 | National Key Research and Development Program of China[2017YFA0402500] ; National Key Research and Development Program of China[2017YFE0301100] ; U.S. Department of Energy[DE-AC02-09CH11466] ; U.S. Department of Energy[DE-SC0016553] ; U.S. Department of Energy[DE-FC02-04ER54698] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000688211500003 |
| 资助机构 | National Key Research and Development Program of China ; U.S. Department of Energy |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/125145]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Sun, Z.; Zuo, G. Z.; Hu, J. S. |
| 作者单位 | 1.Princeton Plasma Phys Lab, 100 Stellarator Rd, Princeton, NJ 08540 USA 2.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China 3.Nanchang Univ, Dept Phys, Nanchang 330031, Jiangxi, Peoples R China 4.Johns Hopkins Univ, Baltimore, MD 21211 USA 5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 6.Gen Atom, POB 85608, San Diego, CA 92186 USA 7.Anhui Univ Sci & Technol, Sch Mech Engn, Huainan 232001, Peoples R China 8.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Z.,Maingi, R.,Diallo, A.,et al. Enhancement of edge turbulence concomitant with ELM suppression during boron powder injection in EAST[J]. PHYSICS OF PLASMAS,2021,28. |
| APA | Sun, Z..,Maingi, R..,Diallo, A..,Xu, W..,Qian, Y. Z..,...&Hu, J. S..(2021).Enhancement of edge turbulence concomitant with ELM suppression during boron powder injection in EAST.PHYSICS OF PLASMAS,28. |
| MLA | Sun, Z.,et al."Enhancement of edge turbulence concomitant with ELM suppression during boron powder injection in EAST".PHYSICS OF PLASMAS 28(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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