Abstract
High beta experiments on PDX have indicated that an additional degradation in the global energy confinement time occurs during high power neutral beam injection with beta //Tq values above . 045. Evidence from fast charge exchange data and neutron emission suggests that this additional loss of confinement is due mainly to a rapid expulsion of the fast ions from the plasma. In order to detect and study the inferred flux of fast ions two additional diagnostics were added: a D** plus detector to measure the flux of escaping ions and a set of rf probes to investigate the possibility that rf instabilities were involved in the acceleration of beam ions above the injection energy.
Original language | English (US) |
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Title of host publication | Commission of the European Communities, (Report) EUR |
Editors | Heinz Knoepfel, Elio Sindoni |
Publisher | Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi |
Pages | 111-118 |
Number of pages | 8 |
Volume | 1 |
State | Published - Dec 1 1984 |
All Science Journal Classification (ASJC) codes
- General Engineering