Analysis of Pumping Requirement for Exhausting Duct in Close Vicinity of Divertor in Tokamak Reactor
- 1 November 1983
- journal article
- research article
- Published by Taylor & Francis in Nuclear Technology - Fusion
- Vol. 4 (3), 498-507
- https://doi.org/10.13182/FST83-A22799
Abstract
An improved method for Monte Carlo simulation is described to calculate the neutral-particle transport in a divertor throat and to evaluate the helium removal efficiency from a burning plasma. The required pumping speed for the helium removal is discussed with special emphasis placed on the effects of long exhausting duct and of scrape-off plasma variables. The analysis for International Tokamak Reactor (INTOR) single null divertor suggests a possibility that the pumping requirement for INTOR could be drastically eased—e.g., 4 ℓ/s, for the high scrape-off plasma density of the order of 1013 cm–3.Keywords
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