1980
DOI: 10.1103/physrevlett.44.1215
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Major Disruptions in Tokamaks

Abstract: Numerical simulations of tokamak plasmas are presented which reproduce the basic observed behavior of disruptions. Details are given of the onset of the disruption-initiated in the simulations by the m = 2 island intersecting the limiter or cold-gas region -and of the mechanism of the final (total or partial) plasma loss.

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Cited by 75 publications
(64 citation statements)
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“…In Ref. 3, it is found that a single m = 2 island touching a limiter or cool-gas region at the plasma edge has a strong destabilizing effect, while in Refs. 4 and 5, the m = 2 mode is found to grow spontaneously if the safety factor q(r) = rBJ RB e at the plasma periphery falls below a threshold.…”
mentioning
confidence: 98%
“…In Ref. 3, it is found that a single m = 2 island touching a limiter or cool-gas region at the plasma edge has a strong destabilizing effect, while in Refs. 4 and 5, the m = 2 mode is found to grow spontaneously if the safety factor q(r) = rBJ RB e at the plasma periphery falls below a threshold.…”
mentioning
confidence: 98%
“…The 2/1 mode can even stop rotation due to the locking effect of the vacuum vessel and error field and cause major disruptions [8][9][10]. The stabilization of (neoclassical) tearing modes is therefore an important issue for a fusion reactor.…”
mentioning
confidence: 99%
“…A concern towards the achievement of this goal is represented by major disruptions [1]: complete losses of confinement often initiated [2] by a non-rotating ('locked') magnetic island created by magnetic reconnection [3]. During disruptions, energy and particles accumulated in the plasma volume over several confinement times (seconds in ITER, a fraction of a second in present experiments) are lost in a few milliseconds and released on the plasma-facing materials [4].…”
mentioning
confidence: 99%