Approaches to the diagnostics of alpha particles in tokamaks (invited)
Author:
- 1 August 1986
- journal article
- conference paper
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 57 (8) , 1723-1728
Abstract
Alpha particles from D/T reactions are expected to be produced at a power level of about 5 MW in Q≂1 beam heated experiments in the tokamak fusion test reactor (TFTR) and will become the dominant heating mechanism in future tokamak ignition devices. Although alphas should be well confined according to neoclassical orbit theory, the effects of plasma instabilities on alpha confinement and the effect of alphas on plasma confinement and heating remain to be seen. This paper describes the physical context for alpha particle measurements in tokamaks and reviews the status of recent approaches to their diagnosis.Keywords
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