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Author(s):
K. Itoh, S.-I. Itoh, A. Fukuyama and S. Tsuji
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Title:
Critical Issues and Experimental Examination on Sawtooth and Disruption Physics
Date of publication:
June 1992
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Key words:
Sawtooth, Major Disruption, Magnetic Stochasticity, Trigger, Energy Quench, Tokamak, Experimental Test
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Abstract:
The catastrophic phenomena which are associated with the major disruption and sawtooth contain three key processes: (1) Sudden acceleration of the growth of the helical deformation, (2) Central electron temperature crash, and (3) Rearrangement of the plasma current. Based on the theoretical model that the magnetic stochasticity plays a key role in these processes, the critical issues and possible experimental tests are proposed. Present experimental observations would be sufficient to study the detailed sequences and causes. Though models maynot be complete the comparison with experiments improves understandings.
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