PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Prev
Next
|
|
|
Characterization of plasma current quench during disruption in EAST tokamak |
Chen Da-Long (陈大龙)a, Granetz Robertc, Shen Biao (沈飙)a, Yang Fei (杨飞)a, Qian Jin-Ping (钱金平)a, Xiao Bing-Jia (肖炳甲)a b |
a Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; b School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230031, China; c MIT Plasma Science and Fusion Center, Cambridge, MA 02139, USA |
|
|
Abstract A preliminary analysis of plasma current quenching is presented in this paper based on the disruption database. It demonstrates that 26.8% of discharges have been disrupted in the last 2012 campaign, in addition, the plasma disruptive rate grows with the increase of plasma current. The best-fit linear and instantaneous plasma current quench rate is extracted from the recent EAST disruptions, showing that an 80%-30% interval of the maximum plasma current is well fit for the EAST device. The lowest area-normalized current quench time is 3.33 ms/m2 with the estimated plasma electron temperature being 7.3 eV~9.5 eV. In the disruption case the maximum eddy current goes up to 400 kA, and a fraction of currents are respectively driven on the upper and lower outer plate with nearly 100 MPa-200 MPa stress in the leg.
|
Received: 24 July 2014
Revised: 18 August 2014
Accepted manuscript online:
|
PACS:
|
52.55.Fa
|
(Tokamaks, spherical tokamaks)
|
|
52.35.Qz
|
(Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.))
|
|
52.65.Kj
|
(Magnetohydrodynamic and fluid equation)
|
|
Fund: Project supported by the National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2014GB103000 and 2013GB102000) and the National Natural Science Foundation of China (Grant No. 11205199 and 11205192). |
Corresponding Authors:
Qian Jin-Ping
E-mail: jpqian@ipp.ac.cn
|
Cite this article:
Chen Da-Long (陈大龙), Granetz Robert, Shen Biao (沈飙), Yang Fei (杨飞), Qian Jin-Ping (钱金平), Xiao Bing-Jia (肖炳甲) Characterization of plasma current quench during disruption in EAST tokamak 2015 Chin. Phys. B 24 025205
|
[1] |
ITER Physics Expert Group on Disruptions, Plasma Control, and MHD and ITER Physics Basis Editors 1999 Nuclear Fusion 39 2321
|
[2] |
Hender T C and ITPA MHD, Disruption and Magnetic Control Topical Group 1997 Nuclear Fusion 47 S163
|
[3] |
Riccardo V, Barabaschi P and Sugihara M 2005 Plasma Physics and Controlled Fusion 47 117
|
[4] |
Wan Y X, Li J G and Weng Peide 2006 Proc. 21st IAEA Fusion Energy Conference, Chengdu, China
|
[5] |
Sugihara M et al. 2004 Proc. 21th IAEA Fusion Energy Conference, Chengdu, China
|
[6] |
Wesley J C et al. 2006 Proc. 21th IAEA Fusion Energy Conference, Chengdu, China
|
[7] |
Gerhardt S P, Menard J E and the NSTX Team 2009 Nucl. Fusion 49 025005
|
[8] |
Wan B N 2013 Nucl. Fusion 53 104006
|
[9] |
Qian J P, Wan B N and Shen B 2009 Chin. Phys. B 18 1172
|
[10] |
Liu G J, Wan B N, Qian J P, Sun Y W, Xiao B J, Shen B, Luo Z P, Ji X and Chen S L 2012 Chin. Phys. B 21 085201
|
[11] |
Liu G J, Wan B N, Sun Y W, Xiao B J and Wang Y 2013 Rev. Sci. Instrum. 84 073502
|
[12] |
Wu B, Wang J F, Li J B, Wang J and Hu C D 2011 Fusion Engineering and Design 86 947
|
[13] |
Granetz R S, Hutchinson I H, Sorci J, Irby J H, Labombard B and Gwinn D 1996 Nucl. Fusion 36 545
|
[14] |
Zhang Y, Chen Z Y, Fang D, Jin W, Huang Y H, Wang Z J, Yang Z J, Chen Z P, Ding Y H, Zhang M and Zhuang G 2012 Phys. Scr. 86 025501
|
[15] |
Liu G J, Wan B N, Sun Y W, Liu Y Q, Guo W F, Hao G Z, Ding S Y, Shen B, Xiao B J and Qian J P 2014 Chin. Phys. B 23 075205
|
[16] |
Shibata Y, Watanabe K Y, Okamoto M and Ohno N 2010 Nucl. Fusion 50 025015
|
[17] |
Spitzer L and Harm R 1953 Phys. Rev. 89 977
|
[18] |
Hilton F L and Hazeltine R D 1976 Rev. Mod. Phys. 48 239
|
[19] |
Chen D L, Shen B, Qian J P, Sun Y W, Liu G J, Shi T H, Zhuang H D and Xiao B J 2014 Chin. Phys. B 23 065205
|
[20] |
Wang H, Wang A K, Yang Q W, Ding X T, Dong J Q, Sanuki H B and Itoh K B 2007 Chin. Phys. 16 3738
|
[21] |
Zheng Y Z, Qiu Y, Zhang P, Huang Y, Cui Z Y, Sun P and Yang Q W 2009 Chin. Phys. B 18 5406
|
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
|
|
|