On the origin of the plasma current spike during a tokamak disruption and its relation with magnetic stochasticity
Nuclear Fusion, 2023•iopscience.iop.org
… A common observation during tokamak disruptions is that the plasma current $I_\mathrm p$
… before the beginning of the spike (ie in the first 6 ms), which comes from j φ decaying at the
edge of the plasma due to cooling by the injected argon, is under-estimated by the simulation.
Other simulations (Cases A, B and C in [1]) with a larger argon … This paper explores
physics processes during the plasma operation of the tokamak when disruptions take place;
nevertheless the nuclear operator is not constrained by the results of this paper. The views …
… before the beginning of the spike (ie in the first 6 ms), which comes from j φ decaying at the
edge of the plasma due to cooling by the injected argon, is under-estimated by the simulation.
Other simulations (Cases A, B and C in [1]) with a larger argon … This paper explores
physics processes during the plasma operation of the tokamak when disruptions take place;
nevertheless the nuclear operator is not constrained by the results of this paper. The views …
Abstract
A JOREK 3D non-linear MHD simulation of a disruption triggered by an argon massive gas injection in JET, which quantitatively reproduces the plasma current (
iopscience.iop.org
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