Plasma wall interaction during long pulse operation in Tore Supra.
Increase of plasma density observed during liong pulse operation is reported. The higher the injected and radiated energies are, the faster the increase of density appears. This behaviour correlated with oxygen and hydrogen plasma density increase is attributed to water desorption induced by wall heating due to the high radiated energy of the plasma. These surfaces are far from plasma and are not baked during the conditioning procedures usually used at Tore Supra. Conditioning evidence is seen during discharge series at high injected energy. But this improvement is presented if disruptions occur in between.
Bibliographic Reference: Article: Journal of Nuclear Materials, 266-269 (1999), 146-152
Record Number: 199910728 / Last updated on: 1999-05-14
Original language: en
Available languages: en