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Detection of alpha(3.5 MeV) fusion products will be of major importance for the achievement of self sustained discharges in fusion thermonuclear reactors. Due to their cyclotronic giration in the confining magnetic field of a tokamak, alpha particles are suspected to radiate in the radio-frequency band [RF: 10-500MHz]. Our aim is to determine whether detection of RF emission radiated from a reactor plasma can provide information concerning those fusion products.

We observed experimentally that the RF emission radiated from fast ions situated in the core of the discharge is detectable with a probe located at the plasma edge. For that purpose fast temporal acquisition of spectral power was achieved in a narrow frequency band. We propose 2 complementary models for this emission. .

Additional information

Authors: FRABOULET D, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Report: EUR-CEA-FC-1595 FR (1996) 240pp.
Availability: Available from Association Euratom-CEA, CEN Cadarache, 13108 Saint-Paul-lez-Durance (FR)
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