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Abstract

The analysis of the boundary layers in tokamaks is important for determining the amount of power going out by conduction and for understanding the processes leading to impurities in the plasma. The first part of this paper discusses analytical models of impurity production and of the boundary layer. The second part discusses the application of electrical and surface collector probes to making measurements of temperature, density and particle fluxes in the boundary layer. The final part surveys other techniques of investigating the boundary and of measuring the effect of the plasma on the wall materials. Included in the effects at the wall is a discussion of methods for measuring wall erosion and the build up hydrogen isotope inventories.

Additional information

Authors: MCCRACKEN G M JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: COURSE ON DIAGNOSTICS FOR FUSION REACTOR CONDITIONS, VARENNA, COMO (ITALY), SEPT. 6-17, 1982, PP 419-471, 1983, ISBN 0-08-031161-X WRITE TO PERGAMON PRESS LTD., HEADINGTON HILL HALL, OXFORD OX3 0BW (ENGLAND), PRICE: UKL 47.
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