First results on plasma-edge properties with neutral beam heating in TEXTOR
The significant impact of neutral beam heating (NBI) on plasma boundary parameters in TEXTOR, namely a strong increase of n(e) and T(e), is demonstrated. The heat flux to the limiter increases at a rate more than proportional to the heating power (factor >17) due to enhanced energy transport in the centre and to a change of power sharing, by reducing the fraction of radiation from light impurities and increasing the fraction of convective energy flow at the separatrix. The probability of trapping injected H atoms in the wall-limiter system is estimated from spectroscopic measurements.
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 34780 ORA
Record Number: 198910625 / Last updated on: 1994-12-01
Original language: en
Available languages: en