NEUTRAL PUMPING RATES FOR A NEXT STEP TOKAMAK IGNITION DEVICE.

J. D. Galambos, Y. K.M. Peng, D. Heifetz

Research output: Contribution to journalConference articlepeer-review

Abstract

Neutral pumping rates are calculated for pump-limiter and divertor options of a next step tokamak ignition device using a method that accounts for the coupled effects of neutral transport and plasma transport. For both pump limiters and divertors the plasma flow into the channel surrounding the neutralizer plate is greatly reduced by the neutral recycling. The fraction of this flow that is pumped can be large ( greater than 50%) but in general is dependent on the particular geometry and plasma conditions. It is estimated that pumping speeds APP GRTH 10**5 L/s are adequate for the exhaust requirements in the pump-limiter and the divertor cases.

Original languageEnglish
Pages (from-to)1253-1258
Number of pages6
JournalFusion Technology
Volume8
Issue number1 pt 2(B)
DOIs
StatePublished - 1985
EventProc of the 6th Top Meeting on the Technol of Fusion Energy - San Francisco, CA, USA
Duration: Mar 3 1985Mar 7 1985

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