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Magnetic fluctuation level in disruption plasmas in the TEXTOR tokamak

Published online by Cambridge University Press:  17 July 2009

X. YANG ,
J. LIU ,
T. GAO ,
M. LI ,
Y. J. SHI ,
H. F. LIANG ,
W. D. CAI  and
Z. Y. CHEN
X. YANG
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China
J. LIU
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China
T. GAO
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China
M. LI
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China Key Laboratory of Advanced Technology and Manufacture for Renewable Energy Material, Ministry of Education, Kunming 650092, P.R. China (chenzy1003@163.com)
Y. J. SHI
Affiliation:
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, P.R. China
H. F. LIANG
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China
W. D. CAI
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China
Z. Y. CHEN
Affiliation:
College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092, P.R. China Key Laboratory of Advanced Technology and Manufacture for Renewable Energy Material, Ministry of Education, Kunming 650092, P.R. China (chenzy1003@163.com)
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Abstract

Runaway transport is used to probe the magnetic fluctuation level for TEXTOR disruption plasmas. A zero-dimensional model of the current quench including the generation of runaway electrons has been applied to simulate the experimental current evolution during major disruptions [Plasma Phys. Control. Fusion50 (2008), 105007]. According to the loss rate of runaway electrons used in the fitting parameter of the zero-dimensional model, the magnetic fluctuation level in TEXTOR is derived. It is found that the magnetic fluctuation level is in the order of 10−5, and it increases with the atom number mixed into the plasma.

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Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Issue 1 , February 2010 , pp. 101 - 106
Copyright
Copyright © Cambridge University Press 2009

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