Speaker
Dmitrii Kiramov
(The University of Texas at Austin)
Description
The vertical motion of the plasma current during the current quench phase of the uncontrolled major disruption is described analytically. The presented filament-based model interprets the vertical displacement event in the ideal wall limit as an adiabatically slow evolution of the plasma equilibrium. The initial pre-disruption equilibrium becomes unstable in a pitchfork bifurcation. The bifurcation occurs when the decaying plasma current passes a critical value determined by the external magnetic field. Minimizing the threshold plasma current is desirable to reduce the disruption-induced mechanical and heat loads on the first wall.
| Speaker's title | Mr |
|---|---|
| Speaker's email address | Dmitrii.Kiramov@austin.utexas.edu |
| Speaker's Affiliation | UT, Institute for Fusion Studies, Austin |
| Member State or IGO | United States of America |
Authors
Boris Breizman
(The University of Texas at Austin)
Dmitrii Kiramov
(The University of Texas at Austin)
