Preliminary experiments in the TORE SUPRA tokamak using the ergodic divertor configuration have shown a strong effect on plasma impurities. The result is a decontamination of the central plasma which is due to a decreased carbon content. This is the consequence of a screening effect of the peripheral ergodic layer which is due to an important increase of the recycling impurity flux, as well as of a modification of the impurity source terms.

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Les notions seconde marque et de second vin concernent exclusivement les vins de producteur et constituent des variétés – ou des déclinaisons, comme on dit – des marques domaniales qui les couvrent. On comprend aussitôt qu’un nom de cru quelque peu connu puisse à lui seul engendrer des profits.

No abstract