2nd workshop on Wendelstein VII-X
The aim of the second workshop on Wendelstein VII-X is to select one of the various options of the magnetic field configurations. Helias configurations are stable against ballooning modes and resistive interchange modes at an average beta of more than 5%. In Helias configurations Pfirsch-Schlüter currents are reduced, thus approximating the "weak Palumbo condition" (B = const. orthogonal to B-lines on a magnetic surface). The Helias configuration has been investigated with respect to plasma equilibrium, MHD-stability, neoclassical transport and bootstrap currents. Technical studies concerning the feasibility of superconducting modular coils have been made: force and stress analysis demonstrate that the maximum values are within the technical limits. The objectives of the workshop are: - to select the optimum Helias configuration with respect to MHD-stability and neo-classical transport, - to discuss the various heating scenarios, - to discuss transport mechanisms and bootstrap current and to estimate possible mechanisms for anomalous transport, - to discuss various problems of impurity release, diffusion and control - to present conceptual solutions to the mechanical problems of modular superconducting coils - to make a choice between a normal conducting and superconducting version.
Bibliographic Reference: EUR 11705 EN (1988) FS, 550 pp., ECU 45
ISBN: ISBN 92-825-9010-0;CD-NA-
Record Number: 198910280 / Last updated on: 1994-12-01
Original language: en
Available languages: en