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RF Heating for Fusion Product Studies
Culham Sci Ctr, JET, EUROfus Consortium, Abingdon OX14 3DB, Oxon, England.;KTH, Sch Elect Engn, Dept Fus Plasma Phys, Stockholm, Sweden..
Culham Sci Ctr, JET, EUROfus Consortium, Abingdon OX14 3DB, Oxon, England.;KTH, Sch Elect Engn, Dept Fus Plasma Phys, Stockholm, Sweden..
Culham Sci Ctr, CCFE Fus Assoc, Abingdon OX14 3DB, Oxon, England..
Culham Sci Ctr, CCFE Fus Assoc, Abingdon OX14 3DB, Oxon, England..
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2015 (English)Conference paper, Published paper (Refereed)
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Text
Abstract [en]

Third harmonic cyclotron heating is an effective tool for accelerating deuterium (D) beams to the MeV energy range, suitable for studying ITER relevant fast particle physics in plasmas without significant tritium content. Such experiments were recently conducted in JET with an ITER like wall in D plasmas with He-3 concentrations up to 30% in order to boost the fusion reactivity by D-He-3 reactions. The harmonic cyclotron heating produces high-energy tails in the MeV range of D ions by on-axis heating and of He-3 ions by tangential off-axis heating. The discharges are characterized by long sawtooth free periods and a rich spectrum of MHD modes excited by the fast D and He-3 ions. The partitions of the power, which depend on the distribution function of D, vary strongly over several slowing down times. Self-consistent modelling of the distribution function with the SELFO-light code are presented and compared with experimental data from fast particle diagnostics.

Place, publisher, year, edition, pages
2015. Vol. 1689, 060007- p., UNSP 060007
Series
AIP Conference Proceedings
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-279228DOI: 10.1063/1.4936505ISI: 000366583100043ISBN: 978-0-7354-1336-8 (print)OAI: oai:DiVA.org:uu-279228DiVA: diva2:907998
Conference
21st Topical Conference on Radiofrequency Power in Plasmas, APR 27-JUL 29, 2015, CA
Available from: 2016-03-01 Created: 2016-02-29 Last updated: 2016-03-01Bibliographically approved

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Eriksson, J.

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