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Abstract

The present data on spectral line shifts with up to 2.1.MW of H-0 co-injection indicte that the asymmetric bundle divertor is responsible for rotational momentum damping. It is planning to obtain a much wider data set of results, including the momentum dependence on co- and counter-injection, on beam energy, on beam energy, on n-e (r), and on the varying degrees of divertor ripple. Corrrelation of the rotation with MHD activity and with impurity accumulation or expulsion is desirable, as discussed in the theoretical work of Stacey et al. "19" and in the experimental work on ISBX by Isler et al. and by Wooton et al. "9". The NIPS spectrometer with multichannel detection is well designed for such a study, since line profiles from several ion species - each with its characteristics and different plasma radius - can be measured simultaneously, giving the time dependence of rotational shear. It is hoped that this work will be continued after the DITE upgrade.

Additional information

Authors: HAWKES N C, CULHAM LABORATORY, ABINGDON (UK);PEACOCK N J CULHAM LABORATORY, ABINGDON (UK), CULHAM LABORATORY, ABINGDON (UK)
Bibliographic Reference: NUCLEAR FUSION, VOL. 25 (1985) NO. 8, PP. 971-980
Record Number: 1989124103400 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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