| Original Articles |
|
|
|
|
Observation of Fishbone-Like Instabilities Excited by Energetic Electrons on the HL-2A Tokamak |
| CHEN Wei, DING Xuan-Tong, LIU Yi, YUAN Guo-Liang, ZHANG Yi-Po, DONG Yun-Bo, SONG Xian-Ying, ZHOU Jun, SONG Xian-Ming, DENG Wei, YANG Qing-Wei |
| Southwestern Institute of Physics, PO Box 432 Chengdu 610041 |
|
| Cite this article: |
|
CHEN Wei, DING Xuan-Tong, LIU Yi et al 2008 Chin. Phys. Lett. 25 3708-3711 |
|
|
|
|
Abstract Strong burst of an internal kink mode is observed on the HL-2A tokamak. Features of the fishbone-like mode are presented. The fishbone-like instabilities can be driven during electron cyclotron resonance heating (ECRH) and can be excited on the high field side (HFS) by ECRH. It is found for the first time that the modes also present themselves on the low field side (LFS) during ECRH. Experiments show that the energetic electrons with energy of 35--70keV play a dominant role in the excitation mechanism, and the experimental results are also consistent with our calculation ones.
|
| Keywords:
52.25.Dq
52.35.Mw
52.35.Py
|
|
|
Received: 16 May 2008
Published: 26 September 2008
|
|
| PACS: |
52.25.Dq
|
|
| |
52.35.Mw
|
(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
|
| |
52.35.Py
|
(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
|
|
|
|
|
|
[1] McGuire K, Goldston R, Bell M, Bitter M, Bol K, Brau K,Buchenauer D, Crowley T, Davis S, Dylla F, Eubank H, Fishman H,Fonck R, Grek B, Grimm R, Hawryluk R, Hsuan H, Hulse R, Izzo R,Kaita R, Kaye S, Kugel H, Johnson D, Manickam J, Manos D, MansfieldD, Mazzucato E, McCann R, McCune D, Monticello D, Motley R, MuellerD, Oasa K, Okabayashi M, Owens K, Park W, Reusch M, Stathoff N,Schmidt G, Sesnic S, Strachan J, Takahashi H, Tenney F, Thomas P,Towner H, White R, Surko C, Slusher R and Valley J 1983 Phys.Rev. Lett. 50 891
[2] Chen L, White R B and Rosenbluth M N 1984 Phys.Rev. Lett. 52 1122
[3] Coppi B and Porceli F 1986 Phys. Rev. Lett. 57 2272
[4] Heidbrink W W, Bol K, Buchenauer D, Fonck R, Gammel G, IdaK, Kaita R, Kaye S, Kugel H, LeBlanc B, Morris W, Okabayashi M,Powell F, Sesnic S and Takahashi H 1986 Phys. Rev. Lett. 57 835
[5] Betti R and Freiderg J P 1993 Phys. Rev. Lett. 70 3428
[6] Wang S J 2001 Phys. Rev. Lett. 86 5286
[7] Wong K L, Chu M S, Luce T C, Petty C C, Politzer P A,Prater R, Chen L, Harvey R W, Austin M E, Johnson L C, LaHaye R Jand Snider R T 2000 Phys. Rev. Lett. 85 996
[8] Yan L W, Dong J Q, Ding X T, Liu Yi, Guo G C, Wang E Y andHL-1M Team 2001 Chin. Phys. Lett. 18 1227
[9] Ding X T, Liu Yi, Guo G C, Wang E Y, Wong K L, Yan L W,Dong J Q, Cao J Y, Zhou Y, Rao J, Yuan Y, Xia H, Liu Y and HL-1Mgroup 2002 Nucl. Fusion 42 491
[10] Smeulders P, Buratti P, De Benedetti M, Monari G and FTUteam 2002 29th EPS Conf. Contr. Fusion and Plasma Phys. ECAvol 26B D-5.016
[11] Sun Y W, Wan B N, Hu L Q, Wang S J, Shen B, Zhang X Q,Zhen X J and Xu G S 2005 Plasma Phys. Control. Fusion 47 745
[12] Wang Z T Long Y X, Dong J Q, Wang L and Zonca F 2006 Chin. Phys. Lett. 23 158
[13] Wang Z T Long Y X, Wang A K, Dong J Q, Wang L and Zonca F2007 Nucl. Fusion 47 1307
[14] Zonca F, Buratti P, Cardinali A, Chen L, Dong J Q, Long YX, Milovanov A V, Romanelli F, Smeulders P, Wang L, Wang Z T,Castaldo C, Cesario R, Giovannozzi E, Marinucci M and PericoliRidolfini V 2007 Nucl. Fusion 47 1588
[15] Valovic M, Lloyd B, McClements K G, Warrick C D, FieldingS J, Morris A W, Pinfold T, Wilson H R, COMPASS-D Team and ECRH Team2000 Nucl. Fusion 40 1569
[16] Hazeltine R D, Mahajan S M and Hitchcock D A 1972 Phys. Fluids 24 1164
[17] Connor J W, Hastie R J and Martin T J 1983 Nucl.Fusion 23 1702 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
