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A New Criterion for Disruption Prediction on HL-2A |
| YANG Qing-Wei1;ZHOU Hang-Yu1;FENG Bei-Bin1;LIU Yi1;PAN Yu-Dong1;LI Wei1;DUAN Xu-Ru1;CHEN Wei1;CUI Zheng-Ying1;JI Xiao-Quan2;DING Xuan-Tong1;HL-2A team |
| 1Southwestern Institute of Physics, PO Box 432, Chengdu 610041
2School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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YANG Qing-Wei, ZHOU Hang-Yu, FENG Bei-Bin et al 2006 Chin. Phys. Lett. 23 891-894 |
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Abstract A new criterion has been proposed to predict the major disruptions caused by tearing mode instabilities. According to the HL-2A experimental results, the statistical analyses are employed to investigate the relationships between MHD activities and the plasma disruptions. Two kinds of the tearing mode activities can finally cause the disruption on HL-2A operations. By introducing a new parameter, i.e. an integral of poloidal magnetic field over time, as the criterion of disruption precursor, almost all of the disruptions can be predicted.
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| Keywords:
52.35.Py
52.55.Fa
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Published: 01 April 2006
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| PACS: |
52.35.Py
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(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
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52.55.Fa
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(Tokamaks, spherical tokamaks)
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