Research on coupling characteristics of low hybrid wave in the presence of electron cyclotron wave in Tokamak

Huang Jie; Bai Xing-Yu; Zeng Hao; Tang Chang-Jian

doi:10.7498/aps.62.025202

Abstract

It is found in the experiments on synergy between low hybrid wave (LHW) and electron cyclotron wave (ECW) that the LHW reflection coefficient decreases with the injection of ECW into plasmas in the presence of LHW. In the present paper, the coupling characteristics of LHW, and the pump-out phenomenon caused by ECW are analyzed theoretically. The analysis shows the law of pump-out and the increase of plasma density in the vicinity of the grill mouth caused by pump-out, there by improving LHW coupling. The conclusion is proved by the experiments. Also, considering the change of the plasma density in the vicinity of the grill mouth caused by pump-out in synergy experiments, the synergy current should be corrected.

Keywords:

Authors and contacts

1.
Physics Department of Sichuan university 610064, China;
2.
Southwestern Institute of Physics 610041, China
Funds: Project supported by the National Magnetic Confinement Fusion Science Program, China (Grant Nos. 2009GB105003, 2010GB107003).

References

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[19]	Song S D, Zou X L, Giruzzi G, Xiao W W, Ding X T, Ding B J, Ségui J L, Elbéze D, Clairet F, Fenzi C, Aniel T, Artaud J F, Basiuk V, Bouquey F, Magne R, Corbel E, the Tore Supra Team 2012 Nucl. Fusion 52 033006
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[22]	Xiao W W, Zou 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, HL-2A Team 2010 Phys. Rev. Lett. 104 215001
[23]	Tokar Z, 1994 Plasma Phys. Control. Fusion 36 1819
[24]	Kalupin D, Tokar M Z, Unterberg B, Loozen X, Pilipenko D 2005 Nucl. Fusion 45 468
[25]	Loozen X, Kalupin D, Tokar M Z, Marchuk O, Jakubowski M 2006 Contrib. Plasma Phys. 46 704
[26]	Becker G 2004 Nucl. Fusion 44 933
[27]	G～ rmezano C, Morea D 1984 Plasma Phys. Control. Fusion 26 553
[28]	Mlynek A, Reich M, Giannone L, Treutterer W, Behler K, Blank H, Buhler A, Cole R, Eixenberger H, Fischer R, Lohs A, L uddecke K, Merkel R, Neu G, Ryter F, Zasche D, the ASDEX Upgrade Team 2011 Nucl. Fusion 51 043002
[29]	Hong B B, Chen S Y, Tang C J, Zhang X J, Hu Y J 2012 Acta Phys. Sin. 61 115207 (in Chinese) [洪斌斌, 陈少永, 唐昌建, 张新军, 胡有俊 2012 61 115206]

Cited By

[1]	Brambilla M, 1976 Nucl. Fusion 16 1
[2]	Stevens J, Ono M, Horton R, Wilson J R 1981 Nucl. Fusion 21 1259
[3]	Ma Z F, Li D F, Chen J 1982 Acta Phys. Sin. 31 159 (in Chinese) [马中芳, 李大丰, 陈激 1982 31 159]
[4]	Petrzilka V A, Leuterer F, Soldner F X, Giannone L, Schubert R 1991 Nucl. Fusion 31 1758
[5]	Pericoli Ridolfini V, Ekedahl A, SKErents, Mailloux J, Podda S, Sarazin Y, Tuccillo A A 2004 Plasma Phys. Control. Fusion 46 349
[6]	Ekedahl A, Rantamaki K, Goniche 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, JET-EFDA contributors 2009 Plasma Phys. Control. Fusion 51 044001
[7]	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, Zhang W, Wang X M, Wu J H, Gao X, Zhang X D, Zhao Y P, HT-7 Team 2010 Phys. Plasmas 17 022504
[8]	Ando A, Ogura K, Tanaka H, Iida M, Ide S, Oho K, Ozaki S, Nakamura M, Cho T, Maekawa T, Terumichi Y, Tanaka S 1986 Phys. Rev. Lett. 56 2180
[9]	Yamamoto T, Hoshino K, Kawashima H, Uesugi Y, Mori M, Suzuki N, Ohta K, Matoba T, Kasai S, Kawakami T, Maeno M, Matsuda T, Matsumoto H, Miura Y, Ochiai I, Odajima K, Ogawa T, Ogawa H, Ohtsuka H, Sengoku S, Shoji T, Tamai H, Tanaka Y, Yamamoto S, Yamauchi T, Yanagisawa I 1987 Phys. Rev. Lett. 58, 2220
[10]	Maekawa T, Maehara T, Minami T, Kishigami Y, Kishino T, Makino K, Hanada K, Nakamura M, Terumichi Y, Tanaka S 1993 Phys. Rev. Lett. 70 2561
[11]	Giruzzi G, Artaud J F, Dumont R J, Imbeaux F, Bibet P, Berger-By G, Bouquey F, Clary J, Darbos C, Ekedahl A, Hoang G T, Lennholm M, Maget P, Magne R, Ségui J L 2004 Phys. Rev. Lett. 93 255002
[12]	England A C, Eldridge O C, Knowlton S F, Porkolab M, Wilson J R 1989 Nucl．Fusion 29 1527
[13]	Gilgenbach R M, Read M E, Hackett K E, Lucey R, Hui B, Granatstein V L, Chu K R, England A C, Loring C M, Eldridge O C, Howe H C, Kulchar A G, Lazarus E, Murakami M, Wilgen J B 1980 Phys. Rev. Lett. 44 647
[14]	Hanson G R, England A C, Wilgen J B, Baity F W, Batchelor D B, Carter M D, Hoffman D J, Murakami M, Rasmussen D A, Ryan P M, Swain D W, Rogers J H, Wilson J R, Majeski R P, Schilling G, Doyle E J, Kim K W 1995 Conf. Proc 355 463
[15]	Zabolotsky A, Weisen H, Team TCV 2006 Plasma Phys. Control. Fusion 48 369
[16]	Gohil P, Evans T E, Ferron J R, Moyer R A, Petty C C, Burrell K H, Casper T A, Garofalo A M, Hyatt A W, Jayakumar R J, Kessel C, Kim J Y, La Haye R J, Lohr J, Luce T C, Makowski M A, Mazon D, Menard J, Murakami M, Politzer P A, Prater R, Wade M R 2006 Plasma Phys. Control. Fusion 48 A45
[17]	Mlynek A, Reich M, Giannone L, Treutterer W, Behler K, Blank H, Buhler A, Cole R, Eixenberger H, Fischer R, Lohs A, Lddecke K, Merkel R, Neu G, Ryter F, Zasche D, the ASDEX Upgrade Team 2011 Nucl. Fusion 51 043002
[18]	Yan L W, Duan X R, Ding X T, Dong J Q, Yang Q W, Liu Y, Zou X L, Liu D Q, Xuan W M, Chen L Y, Rao J, Song X M, Huang Y, Mao W C, Wang Q M, Li Q, Cao Z, Li B, Cao J Y, Lei G J, Zhang J H, Li X D, Chen W, Cheng J, Cui C H, Cui Z Y, Deng Z C, Dong Y B, Feng B B, Gao Q D, Han X Y, Hong W Y, Huang M, Ji X Q, Kang Z H, Kong D F, Lan T, Li G S, Li H J, Li Q, Li W, Li Y G, Liu A D, Liu Z T, Luo C W, Mao X H, Pan Y D, Peng J F, Shi Z B, Song S D, Song X Y, Sun H J, Wang A K, Wang M X, Wang Y Q, Xiao W W, Xie Y F, Yao L H, Yao L Y, Yu D L, Yuan B S, Zhao K J, Zhong G W, Zhou J, Zhou Y, Yan J C, Yu C X, Pan C H, Liu Y, the HL-2A team 2011 Nucl. Fusion 51 094016
[19]	Song S D, Zou X L, Giruzzi G, Xiao W W, Ding X T, Ding B J, Ségui J L, Elbéze D, Clairet F, Fenzi C, Aniel T, Artaud J F, Basiuk V, Bouquey F, Magne R, Corbel E, the Tore Supra Team 2012 Nucl. Fusion 52 033006
[20]	Stober J, Fuchs C, Gruber O, Kaufmann M, Kurzan B, Meo F, Mller H W, Ryter F, ASDEX Upgrade Team 2001 Nucl. Fusion 41 1535
[21]	Angioni C, Peeters A G, Garbet X, Manini A, Ryter F, ASDEX Upgrade Team 2004 Nucl. Fusion 44 827
[22]	Xiao W W, Zou 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, HL-2A Team 2010 Phys. Rev. Lett. 104 215001
[23]	Tokar Z, 1994 Plasma Phys. Control. Fusion 36 1819
[24]	Kalupin D, Tokar M Z, Unterberg B, Loozen X, Pilipenko D 2005 Nucl. Fusion 45 468
[25]	Loozen X, Kalupin D, Tokar M Z, Marchuk O, Jakubowski M 2006 Contrib. Plasma Phys. 46 704
[26]	Becker G 2004 Nucl. Fusion 44 933
[27]	G～ rmezano C, Morea D 1984 Plasma Phys. Control. Fusion 26 553
[28]	Mlynek A, Reich M, Giannone L, Treutterer W, Behler K, Blank H, Buhler A, Cole R, Eixenberger H, Fischer R, Lohs A, L uddecke K, Merkel R, Neu G, Ryter F, Zasche D, the ASDEX Upgrade Team 2011 Nucl. Fusion 51 043002
[29]	Hong B B, Chen S Y, Tang C J, Zhang X J, Hu Y J 2012 Acta Phys. Sin. 61 115207 (in Chinese) [洪斌斌, 陈少永, 唐昌建, 张新军, 胡有俊 2012 61 115206]

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