PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Prev
Next
|
|
|
Investigation of lower hybrid current drive during H-mode in EAST tokamak |
Li Miao-Hui(李妙辉)†, Ding Bo-Jiang(丁伯江), Kong Er-Hua(孔二华), Zhang Lei(张磊), Zhang Xin-Jun(张新军), Qian Jin-Ping(钱金平), Yan Ning(颜宁), Han Xiao-Feng(韩效锋), Shan Jia-Fang(单家方), Liu Fu-Kun(刘甫坤), Wang Mao(王茂), Xu Han-Dong(徐旵东), and Wan Bao-Nian(万宝年) |
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
|
|
Abstract H-mode discharges with lower hybrid current drive (LHCD) alone are achieved in EAST divertor plasma over a wide parameter range. These H-mode discharges are characterized by a sudden drop in Dα emission and a spontaneous rise in main plasma density. Good lower hybrid (LH) coupling during H-mode is obtained by putting the plasma close to the antenna and by injecting D2 gas from a pipe near the grill mouse. The analysis of lower hybrid current drive properties shows that the LH deposition profile shifts off axis during H-mode, and current drive (CD) efficiency decreases due to the increase in density. Modeling results of H-mode discharges with a general ray tracing code GENRAY are reported.
|
Received: 20 March 2011
Revised: 15 June 2011
Accepted manuscript online:
|
PACS:
|
52.50.Sw
|
(Plasma heating by microwaves; ECR, LH, collisional heating)
|
|
52.65.Ff
|
(Fokker-Planck and Vlasov equation)
|
|
52.40.Db
|
(Electromagnetic (nonlaser) radiation interactions with plasma)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10875149 and 10805057) and the National Magnetic Confinement Fusion Science Program of China (Grant No. 2010GB105004). |
Cite this article:
Li Miao-Hui(李妙辉), Ding Bo-Jiang(丁伯江), Kong Er-Hua(孔二华), Zhang Lei(张磊), Zhang Xin-Jun(张新军), Qian Jin-Ping(钱金平), Yan Ning(颜宁), Han Xiao-Feng(韩效锋), Shan Jia-Fang(单家方), Liu Fu-Kun(刘甫坤), Wang Mao(王茂), Xu Han-Dong(徐旵东), and Wan Bao-Nian(万宝年) Investigation of lower hybrid current drive during H-mode in EAST tokamak 2011 Chin. Phys. B 20 125202
|
[1] |
Wagner F, Becker G, Behringer K, Campbell D, Eberhagen A, Engelhardt W, Fussmann G, Gehre O, Gernhardt J, Gierke G V, Haas G, Huang M, Karger F, Keilhacker M, Kluber O, Kornherr M, Lackner K, Lisitano G, Lister G G, Mayer H M, Meisel D, Muller E R, Murmann H, Niedermeyer H, Poschenrieder W, Rapp H, Bohr H, Schneider F, Siller G, Speth E, Stabler A, Steuer K H, Venus G, Vollmer O and Yu Z 1982 Phys. Rev. Lett. 49 1408
|
[2] |
Kaye S M, Bell M, Bol K, Boyd D, Brau K, Buchenauer D, Budny R, Cavallo A, Couture P, Crowley T, Darrow D S, Eubank H, Fonck R J, Goldston R, Grek B, Jaehnig K P, Johnson D, Kaita R, Kugel H, Leblanc B, Manickam J, Manos D, Mansfield D, Mazzucato E, McCann R, McCune D, McGuire K, Mueller D, Murdock A, Okabayashi M, Okano K, Owens D K, Post D E, Reusch M, Schmidt G L, Sesnic S, Slusher R, Suckewer S, Surko C, Takahashi H, Tenney F, Towner H and Valley J 1984 J. Nucl. Mater. 121 115
|
[3] |
Tubbing B J D, Jacquinot J J, Stork D and Tanga A 1989 Nucl. Fusion29 1953
|
[4] |
Fielding S J, Ashall J D, Carolan P G, Colton A, Gates D, Hugill J, Morris A W, Valovic M, the COMPASS-D and ECRH Teams 1996 Plasma Phys. Control Fusion 38 1091
|
[5] |
Keilhacker M, Becker G, Bernhardi K, Eberhagen A, ElShaer M, FuBmann G, Gehre O, Gernhardt J, Gierke G V, Glock E, Haas G, Karger F, Kissel S, Kluber O, Kornherr K, Lackner K, Lisitano G, Lister G G, Massig J, Mayer H M, McCormick K, Meisel D, Meservey E, Muller E R, Murmann H, Niedermeyer H, Poschenrieder W, Rapp H, Richter B, Rohr H, Ryter F, Schneider F, Siller S, Smeulders P, Soldner F, Speth E, Stabler A, Steinmetz K, Steuer K H, Szymanski Z, Venus G, Vollmer O and Wagner F 1984 Plasma Phys. Control Fusion 26 49
|
[6] |
Biglari H, Diamond P H and Terry P W 1990 Phys. Fluids B bf4 1385
|
[7] |
Ding B J, Shan J F, Liu F K, Fang Y D, Wei W, Wu Z W, Chen Z Y, Xu H D, Wang M, Jiang M, Zhang G R, Huang F, Zhao Y P, Kuang G L and HT-7 Team 2006 Chin. Phys. 15 2989
|
[8] |
JET Team 1991 Proceedings of the Thirteenth International Conference on Plasma Physics and Controlled Nuclear Fusion Research Seattle, USA IAEA-CN-53/A-IV-1/P261
|
[9] |
ITER Physics Expert Group on Confinement and Transport, ITER Physics Expert Group on Confinement Modelling and Database and ITER Physics Basis Editors 1999 Nucl. Fusion 39 2175
|
[10] |
Doyle E J, Houlberg W A, Kamada Y, Mukhovatov V, Osborne T H, Polevoi A, Bateman G, Connor J W, Cordey J G, Fujita T, Garbet X, Hahm T S, Horton L D, Hubbard A E, Imbeaux F, Jenko F, Kinsey J E, Kishimoto Y, Li J, Luce T C, Martin Y, Ossipenko M, Parail V, Peeters A, Rhodes T L, Rice J E, Roach C M, Rozhansky V, Ryter F, Saibene G, Sartori R, Sips A C C, Snipes J A, Sugihara M, Synakowski E J, Takenaga H, Takizuka T, Thomsen K, Wade M R, Wilson H R, ITPA Transport Physics Topical Group, ITPA Confinement Database and Modelling Topical Group and ITPA Pedestal and Edge Topical Group 2007 Nucl. Fusion 47 S18
|
[11] |
Ekedahl A, Rantamäki K, Gonicheet M, Mailloux J, Petrzilka V, Alper B, Baranov Y, Basiuk V, Beaumont P, Corrigan G, Delpech L, Erents K, Granucci G, Hawkes N, Hobirk J, Imbeaux F, Joffrin E, Kirov K, Loarer T, McDonald D, Nave M F F, Nunes I, Ongena J, Parail V, Piccolo F, Rachlew E, Silva C, Sirinelli A, Stamp M, Zastrow K D and JET-EFDA Contributors 2009 Plasma Phys. Control Fusion 51 044001
|
[12] |
Yan N, Xu G S, Zhang W, Chang J F, Ming T F, Ding S Y, Zhang W Y and Han X F 2010 Plasma Sci. Technol. 12 401
|
[13] |
Ding B J, Li M H, Qin Y L, Li W K, Zhang L Z, Shan J F, Liu F K, Wang M, Meng L G, Xu H D, Wang D X, Jie Y X, Sun Y W, Shen B, Wang X M, Wu J H, Gao X, Zhang X D, Zhao Y P and HT-7 Team 2010 Phys. Plasmas 17 022504
|
[14] |
Lu H W, Hu L Q, Zhou R J, Xu P, Zhong G Q, Lin S Y and Wang S F 2010 Acta Phys. Sin. 59 7175 (in Chinese)
|
[15] |
Ushigusa K, Imai T, Ikeda Y, Sakamoto K, Söldner F X, Takase Y, Tsuji S, Shimizu K, Naito O, Uehara K, Akiba M, Araki M, Sato M, Yoshida Y, Nagashima K, Kusama Y, Kubo H, Nemoto M and Tobita K 1989 Nucl. Fusion 29 265
|
[16] |
Stix T H 1962 The Theory of Plasma Waves (New York: McGraw-Hill)
|
[17] |
Smirnov A P and Harvey R W 2003 The GENRAY Ray Tracing Code Technical Report CompX-2000-01, version 2
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|