PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Investigation of impurity transport using supersonic molecular beam injected neon in HL-2A ECRH plasma |
Cui Xue-Wu (崔学武), Cui Zheng-Ying (崔正英), Feng Bei-Bin (冯北滨), Pan Yu-Dong (潘宇东), Zhou Hang-Yu (周航宇), Sun Ping (孙平), Fu Bing-Zhong (傅炳忠), Lu Ping (卢平), Dong Yun-Bo (董云波), Gao Jin-Ming (高金明), Song Shao-Dong (宋绍栋), Yang Qing-Wei (杨青巍) |
Southwestern Institute of Physics, Chengdu 610041, China |
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Abstract In this paper, we describe the behavior of impurity transport in the HL-2A electron cyclotron resonance heating (ECRH) L-mode plasma. The neon as a trace impurity is injected by the supersonic molecular beam injection (SMBI) technique, which is used for the first time to study the impurity transport in HL-2A. The progression of neon ions is monitored by the soft X-ray camera and bolometer arrays with good temporal and spatial resolutions. The convection and diffusion process of the neon ions are investigated with the one-dimensional impurity transport code STRAHL. The results show that the diffusion coefficient D of neon ions is a factor of four larger than the neoclassical value in the central region. The value of D is larger in the outer region of the plasma (ρ > 0.6) than in the central region of the plasma (ρ < 0.6). The convective velocity directs inwards with a value of ~-1.0 m/s in the Ohmic discharge, but it reverses to direct outwards with a value of ~ 8.0 m/s in the outer region of the plasma when ECRH is applied. The result indicates that the impurity transport is strongly enhanced with ECRH.
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Received: 30 April 2013
Revised: 08 June 2013
Accepted manuscript online:
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PACS:
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52.25.Vy
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(Impurities in plasmas)
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52.25.Fi
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(Transport properties)
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52.70.Kz
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(Optical (ultraviolet, visible, infrared) measurements)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10975048, 11175061, and 10975049). |
Corresponding Authors:
Cui Xue-Wu
E-mail: cuixw@swip.ac.cn
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Cite this article:
Cui Xue-Wu (崔学武), Cui Zheng-Ying (崔正英), Feng Bei-Bin (冯北滨), Pan Yu-Dong (潘宇东), Zhou Hang-Yu (周航宇), Sun Ping (孙平), Fu Bing-Zhong (傅炳忠), Lu Ping (卢平), Dong Yun-Bo (董云波), Gao Jin-Ming (高金明), Song Shao-Dong (宋绍栋), Yang Qing-Wei (杨青巍) Investigation of impurity transport using supersonic molecular beam injected neon in HL-2A ECRH plasma 2013 Chin. Phys. B 22 125201
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[1] |
Guirlt R, Villegas D, Parisot T, Bourdelle C, Garbet X, Imbeaux F, Mazon D and Pacella D 2009 Nucl. Fusion 49 055007
|
[2] |
Howard N T, Greenwald M and Rice J E 2011 Rev. Sci. Instrum. 82 0335
|
[3] |
Yao L H, Feng B B, Chen C Y, Shi Z B, Yuan B S, Zhou Y, Duan X R, Sun H J, Lu J, Jiao Y M, Ni G Q, Lu H Y, Xiao W W, Li W, Pan Y D, Hong W Y, Ran H, Ding X T and Liu Y 2007 Nucl. Fusion 47 1399
|
[4] |
Xiao W W, Zhou X L, Ding X T, Yao L H, Feng B B, Song X M, Song S D, Zhou Y, Liu Z T, Yuan B S, Sun H J, Ji X Q, Gao Y D, Li Y G, Yan L W, Yang Q W, Liu Y, Dong J Q, Duan X R, Liu Y, Pan C H and HL-2A Team 2010 Phys. Rev. Lett. 104 215001
|
[5] |
Ding X T, Zhou Y, Deng Z C, Xiao W W, Liu Z T, Shi Z B, Yan L W, Hong W Y and Yang Q W 2006 Rev. Sci. Instrum. 77 10F528
|
[6] |
Sertoli M, Angioni C, Dux R, Putterich T, Igochine V and ASDEX Upgrade Team 2011 Plasma Phys. Control Fusion 53 035024
|
[7] |
Angioni C and Peeters A G 2006 Phys. Rev. Lett. 96 095003
|
[8] |
Liu Y, Peterson B J, Dong Y B, Pan Y D and Deng W 2006 Plasma Sci. Technol. 8 41
|
[9] |
Cui Z Y, Morita S, Fu B Z, Huang Y, Sun P, Gao Y D, Xu Y, Dong C F, Lu P, Wang Q M, Ding X T, Yang Q W and Duan X R 2010 Rev. Sci. Instrum. 81 043503
|
[10] |
Zhou H Y, Cui Z Y, Morita S, Fu B Z, Goto M, Sun P, Dong C F, Gao Y D, Xu Y, Lu P, Yang Q W and Duan X R 2012 Rev. Sci. Instrum. 83 10D507
|
[11] |
Yao L H, Zhou Y, Cao J Y, Feng B B, Feng Z, Luo J L, Dong J F, Yan L W, Hong W Y, Li K H, Cui Z Y, Liu Y, Wang E Y, Yan J C and HL-1M Team 2001 Nucl. Fusion 41 817
|
[12] |
Behringer K 1987 Jet Report JET-R (87) 08
|
[13] |
Tazima T, Nakamura Y and Inoue K 1977 Nucl. Fusion 17 419
|
[14] |
Fussmann G, Field A R, Kallenbach K, Steuer K H and The ASDEX Upgrade Team 1991 Plasma Phys. Control Fusion 13 1677
|
[15] |
Cui Z Y, Morita S, Zhou H Y, Ding X T, Sun P, Kobayashi M, Cui X W, Xu Y, Huang X L, Shi Z B, Cheng J, Li Y G, Feng B B, Song S D, Yan L W, Yang Q W and Duan X R 2013 Nucl. Fusion 53 093001
|
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