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Abstract

We have made measurements of the Ion Cyclotron Emission (ICE) Spectrum from JET D**+ ohmic plasmas using an ICRF antenna in reception mode. The spectra (10-100 MHz) show a number of bright emission peaks with (a) frequencies proportional to the magnetic field and (b) intensities correlated with the total DD neutron yield (Y-DD) of the discharge. We have compared the observed intensities of the spectra with the thermal black body emission and find the peaks to be of superthermal origin. We examine the hypothesis that the peaks are generated by the confined charged fusion products from the DD reaction which emit ICE at harmonics of the cyclotron frequency and have used a particle orbit tracing code to generate model spectra to assist interpretation of the data.

Additional information

Authors: COTTRELL G A, JET JOINT UNDERTAKING, ABINGDON (UK);LALLIA P P, JET JOINT UNDERTAKING, ABINGDON (UK);SADLER G, JET JOINT UNDERTAKING, ABINGDON (UK);VAN BELLE P JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: 13TH EUROPEAN CONFERENCE ON CONTROLLED FUSION AND PLASMA HEATING, SCHLIERSEE (GERMANY), APRIL 14-18, 1986 PP. 13-16 WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK) MENTIONING REPORT JET-P(86)15, 1986
Record Number: 1989125007700 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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