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The dependence of the proton–triton thermo-nuclear fusion reaction rate on the temperature and total energy content of the high-energy proton distribution function
CRPP, EDFL, Lausanne, Schweiz.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
CRPP, EDFL, Lausanne, Schweiz.
2009 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 49, no 6, 062004- p.Article in journal (Refereed) Published
Abstract [en]

The endothermic nuclear reaction between thermal tritons and high-energy protons can represent an important contribution to the total neutron yield in tokamak plasmas heated by radio-frequency waves, as the first JET experiments have demonstrated (see Mantsinen et al 2001 Nucl. Fusion [/0029-5515/41/12/309] 41 1815 ). A further study based on more recent JET experiments was reported in Santala et al 2006 ( Plasma Phys. Control. Fusion [/0741-3335/48/8/012] 48 1233 ). In this letter we supplement and complete the previous analysis by reporting the first systematic measurement of the scaling of the proton–triton (pT) thermo-nuclear fusion reaction rate as a function of the total energy content and perpendicular tail temperature of the fast protons heated by radio-frequency waves. It is found that the pT-neutron rate increases almost linearly with the fast proton temperature and the total energy content.

Place, publisher, year, edition, pages
2009. Vol. 49, no 6, 062004- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-129558DOI: 10.1088/0029-5515/49/6/062004OAI: oai:DiVA.org:uu-129558DiVA: diva2:344385
Available from: 2010-08-19 Created: 2010-08-18 Last updated: 2010-08-26Bibliographically approved

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