DEUTERIUM PELLET INJECTION IN THE TFR TOKAMAK
Injecting fresh fuel deep inside the plasma of a thermonuclear reactor appears to be necessary; the only way to do that is to inject fast solid deuterium pellets. The existing theoretical, technical and experimental aspects of this method are presented. The experiments on TFR have confirmed that injecting pellets is technically feasible; a new kind of injector is presented. The injection does not degrade stability nor confinement of the plasma. The study of the transient phenomena occurring during the injection has proved to be an efficient way to investigate particles and energy transport in the discharge; in particular, a fast transport phenomenon, similar to those occurring during disruptions, has been studied in details. Conclusions about disruptions are drawn.
Bibliographic Reference: PHD THESIS, UNIVERSITE DE PARIS-SUD (F), 1985
Record Number: 1989124050500 / Last updated on: 1987-01-01
Available languages: fr