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Stellarator-Mirror Hybrid with Neutral Beam Injection
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2013 (English)In: Fusion science and technology, ISSN 1536-1055, Vol. 63, no 1T, 119-122 p.Article in journal (Refereed) Published
Abstract [en]

A stellarator-mirror fusion-fission hybrid has recently been proposed. Neutral beam injection (NBI) is here studied numerically for this hybrid using a two-dimensional kinetic code, KNBIM The code accounts for Coulomb collisions between the hot ions and the background plasma. The geometry of the confining magnetic field is arbitrary for the code and is accounted for via a numerical bounce averaging procedure. Along with the kinetic calculations the neutron production intensity is computed. The calculated hot ion distribution function from NBI is used in power balance estimates for the whole system. The requirement that the fast neutrals should be efficiently captured in the plasma is imposed to restrict the range of plasma parameters. The results of the power balance calculations are close to results obtained previously with a bi-Maxwellian ion distribution function. The calculated parameters for a power producing stellarator mirror device are within modern top technical capabilities. The parameters of plasma and NBI characteristics seem also attainable. The calculated fusion Q is within a range with potential for energy production in a hybrid reactor.

Place, publisher, year, edition, pages
2013. Vol. 63, no 1T, 119-122 p.
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-224504ISI: 000333412900023OAI: oai:DiVA.org:uu-224504DiVA: diva2:717057
Joint Conference of 9th International Conference on Open Magnetic Systems for Plasma Confinement (OS) and 3rd International Workshop on Plasma Material Interaction Facilities for Fusion Research (PMIF), AUG 27-31, 2012, Tsukuba, JAPAN
Available from: 2014-05-14 Created: 2014-05-13 Last updated: 2014-05-14Bibliographically approved

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