Analysis of the energy heat quench during a disruption in TEXTOR
During a disruption, the plasma energy and the electrical current are lost rapidly. The energy decay time is shorter than the current decay time. In JET the time scale for the energy loss of the plasma amounts to about 1 - 2 ms. In TEXTOR the current decay time is measured to be about 10-20 ms and the energy decay time determined by ECE to be about 1 ms or slightly shorter. Even shorter than this event is the time scale for the heat quench time measured by heating of the limiter or the wall components. The energy release there can lead to a dangerous overheating and damage of the different materials. A technique is described which allows the measurement of this heating over a large area in TEXTOR.
Bibliographic Reference: Paper presented: 17th European Conference on Controlled Fusion and Plasma Heating, Amsterdam (NL), June 25-29, 1990
Availability: Available from (1) as Paper EN 35806 ORA
Record Number: 199011635 / Last updated on: 1994-12-02
Original language: en
Available languages: en