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Effect of passive structure and toroidal rotation on resistive wall mode stability in the EAST tokamak.
- Source :
- Chinese Physics B; Jul2014, Vol. 23 Issue 7, p1-1, 1p
- Publication Year :
- 2014
-
Abstract
- If β<subscript>N</subscript> exceeds β<subscript>N</subscript><superscript>no—wall</superscript>, the plasma will be unstable because of external kink and resistive wall mode (RWM). In this article, the effect of the passive structure and the toroidal rotation on the RWM stability in the experimental advanced superconducting tokamak (EAST) are simulated with CHEASE and MARS codes. A model using a one-dimensional (1D) surface to present the effect of the passive plate is proved to be credible. The no wall β<subscript>N</subscript> limit is about 3l<subscript>i</subscript>, and the ideal wall β<subscript>N</subscript> limit is about 4.5l<subscript>i</subscript> on EAST. It is found that the rotation near the q = 2 surface and the plasma edge affects the RWM more. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 23
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 96918185
- Full Text :
- https://doi.org/10.1088/1674-1056/23/7/075205