Metal Impurity Behaviour in DIVA Determined Using a Blow-Off Technique
- 1 July 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (7)
- https://doi.org/10.1143/jjap.20.1299
Abstract
We obtained clear evidence of metal impurity behaviour in DIVA by using a blow-off technique. The impurity in plasma was found to have a constant velocity of (2–3)·103 cm/s which is much less than the injected velocity of 105 cm/s. Confinement times of metal impurity of about 1 and 4 ms in the peripheral and central region respectively were obtained. The particle balance is represented as the reflected rate 78%, the reducted rate by the divertor action 16%, and the accumulated rate 6%. Major disruption was forced by injecting a large amount of gold atoms.Keywords
This publication has 3 references indexed in Scilit:
- Metal Impurity Injection into DIVA Plasma with a Q-Switched Laser BeamJapanese Journal of Applied Physics, 1980
- Spectroscopic Measurements of Impurities in the Upgraded DIVA Tokamak PlasmaJournal of the Physics Society Japan, 1979
- Divertor experiment for impurity control in DIVAJournal of Nuclear Materials, 1978