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Calculated neutron emission spectrum with knock-on effects for RF heated (He-3)D plasmas
Università degli Studi di Milano-Bicocca, Dipartimento di Fisica "G. Occhialini", Milano, Italien, and, Istituto di Fisica del Plasma "Piero Caldirola", Associazione EURATOM-ENEA-CNR, Milano, Italien.
Università degli Studi di Milano-Bicocca, Dipartimento di Fisica "G. Occhialini", Milano, Italien, and, Istituto di Fisica del Plasma "Piero Caldirola", Associazione EURATOM-ENEA-CNR, Milano, Italien.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Istituto di Fisica del Plasma "Piero Caldirola", Associazione EURATOM-ENEA-CNR, Milano, Italien.
2011 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 51, no 6, 063011- p.Article in journal (Refereed) Published
Abstract [en]

The neutron emission from (He-3)D plasmas with RF heating is calculated using a model that includes supra-thermal (knock-on) components of the deuteron population. The RF generation of fast He-3 ions is described and the knock-on components were determined with the help of newly derived He-3 + d scattering cross sections. Results are presented on the neutron emission spectrum and its contributions from different deuteron velocity components. It is shown that knock-on leaves an observable feature in the spectrum with a clear dependence on absorbed RF power. The importance of the nuclear interaction in the elastic cross section is demonstrated. The results represent a step forward in the use of neutron emission spectroscopy to diagnose fusion plasmas with minority supra-thermal components in their fuel ion composition.

Place, publisher, year, edition, pages
2011. Vol. 51, no 6, 063011- p.
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
URN: urn:nbn:se:uu:diva-154534DOI: 10.1088/0029-5515/51/6/063011ISI: 000290788200013OAI: oai:DiVA.org:uu-154534DiVA: diva2:421023
Available from: 2011-06-07 Created: 2011-06-07 Last updated: 2017-12-11Bibliographically approved

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Källne, Jan

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