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Effects of radiofrequency (rf)-induced radial diffusion on triton burnup are studied for D(3He) plasmas with ion cyclotron range of frequencies heating in the fundamental minority regime. The triton distribution is determined from a Fokker-Planck equation including a radial diffusion term. Provided that the rf power is highly localised in the plasma centre, tritons are driven out from the centre because of rf-induced diffusion in the second harmonic resonance. The emission profile of the 14 MeV neutrons due to D-T reactions can possibly be flattened appreciably. This may lead to verification of rf-induced radial diffusion of the ions only through neutron detection.

Additional information

Authors: YAMAGIWA M, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(93)98 EN (1993)
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199410031 / Last updated on: 1994-11-28
Original language: en
Available languages: en