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A solution of the problem of the power and particle exhaust from the next step tokamaks, will require new techniques which redistribute the power entering the scrape-off layer (SOL) onto much larger surface area than conventional divertor design permits, while maintaining good impurity retention in divertor volume and allowing for efficient helium pumping. Progress made in developing such techniques is discussed. Status of the modelling studies of dynamic gas target divertor and impurity seeded radiating divertors is presented. Recent results of experiments on radiative and gas target divertors are reviewed.

Additional information

Authors: ZAGORSKI R, ENEA, Centro Ricerche Energia Frascati, Roma (IT)
Bibliographic Reference: Report: RT/ERG/FUS/96/23 EN (1996) 38pp.
Availability: Available from Servizio Edizioni Scientifiche, ENEA Centro Ricerche Frascati, CP65, 00044 Frascati, Roma (IT)
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