Spectroscopic studies of plasma surface interactions in Tore Supra
In the first year of operation of Tore Supra only a small number of reproducible shots have been obtained. However, these shots are representative of plasmas in the ohmic phase of the machine. In the initial experiments the plasma was leaning on the inner axisymmetric graphite wall which covers about +- 45 poloidally. To simplify particle control, the working gas in these discharges was helium. The collisional-radiative model of Johnson and Hinnov has been employed to relate the measured intensity of H-lines to the ground state population. The electron source is then calculated using an effective rate coefficient. In this study the model is extended to helium. The spatial distributions are modelled by a 3D neutral transport code which is coupled to a 2D equilibrium code.
Bibliographic Reference: Paper presented: 16th European Conference on Controlled Fusion and Plasma Physics, Venezia (IT), March 13-17, 1989
Availability: Available from (1) as Paper EN 34451 ORA
Record Number: 198910812 / Last updated on: 1994-12-01
Original language: en
Available languages: en