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Neutron spectroscopy results of JET high-performance plasmas and extrapolations to DT performance
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.
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.
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2010 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 81, no 10, 10D337- p.Article in journal (Refereed) Published
Abstract [en]

In a fusion reactor with high energy gain, the fusion power will be mainly thermonuclear (THN). Measurements of the THN neutron rate are a good performance indicator of a fusion plasma, requiring neutron emission spectroscopy (NES) measurements to distinguish thermal and nonthermal contributions. We report here on recent NES results from JET high-performance plasmas with high fractions (about 65%) of THN emission. The analysis is made with a framework for analyzing NES data, taking into account THN reactions and beam-target reactions. The results are used to extrapolate to the equivalent DT rates. Finally, we discuss the applicability of using NES in the deuterium phase of ITER, both for the extrapolations to ITER's future DT performance as well as for the measurements of confined energetic ions.

Place, publisher, year, edition, pages
2010. Vol. 81, no 10, 10D337- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-139249DOI: 10.1063/1.3502326ISI: 000283754000038OAI: oai:DiVA.org:uu-139249DiVA: diva2:380995
Available from: 2010-12-22 Created: 2010-12-22 Last updated: 2016-04-01Bibliographically approved

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Eriksson, J.

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