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Fast-ion distributions from third harmonic ICRF heating studied with neutron emission spectroscopy
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
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2013 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 53, no 11, 113009- p.Article in journal (Refereed) Published
Abstract [en]

The fast-ion distribution from third harmonic ion cyclotron resonance frequency (ICRF) heating on the Joint European Torus is studied using neutron emission spectroscopy with the time-of-flight spectrometer TOFOR. The energy dependence of the fast deuteron distribution function is inferred from the measured spectrum of neutrons born in DD fusion reactions, and the inferred distribution is compared with theoretical models for ICRF heating. Good agreements between modelling and measurements are seen with clear features in the fast-ion distribution function, that are due to the finite Larmor radius of the resonating ions, replicated. Strong synergetic effects between ICRF and neutral beam injection heating were also seen. The total energy content of the fast-ion population derived from TOFOR data was in good agreement with magnetic measurements for values below 350 kJ.

Place, publisher, year, edition, pages
2013. Vol. 53, no 11, 113009- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-212331DOI: 10.1088/0029-5515/53/11/113009ISI: 000326684400010OAI: oai:DiVA.org:uu-212331DiVA: diva2:677609
Available from: 2013-12-10 Created: 2013-12-09 Last updated: 2017-12-06Bibliographically approved

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Hellesen, CarlSundén, E. AnderssonConroy, SeanEricsson, GöranEriksson, JacobSjöstrand, HenrikWeiszflog, Matthias

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Hellesen, CarlSundén, E. AnderssonConroy, SeanEricsson, GöranEriksson, JacobSjöstrand, HenrikWeiszflog, Matthias
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Applied Nuclear PhysicsDepartment of Physics and Astronomy
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