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Polarization: A Must for Fusion

Abstract : Recent realistic simulations confirm that the polarization of the fuel would improve significantly the DT fusion efficiency. We have proposed an experiment to test the persistence of the polarization in a fusion process, using a terawatt laser hitting a polarized HD target. The polarized deuterons heated in the plasma induced by the laser can fuse producing a 3He and a neutron in the final state. The angular distribution of the neutrons and the change in the corresponding total cross section are related to the polarization persistence. The experimental polarization of DT fuel is a technological challenge. Possible paths for Magnetic Confinement Fusion (MCF) and for Inertial Confinement Fusion (ICF) are reviewed. For MCF, polarized gas can be used. For ICF, cryogenic targets are required. We consider both, the polarization of gas and the polarization of solid DT, emphasizing the Dynamic Nuclear polarization (DNP) of HD and DT molecules.
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http://hal.in2p3.fr/in2p3-00872680
Contributor : Sophie Heurteau <>
Submitted on : Monday, October 14, 2013 - 11:30:48 AM
Last modification on : Friday, October 16, 2020 - 3:41:01 AM

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J. P. Didelez, C. Deutsch, M. Guidal. Polarization: A Must for Fusion. 2nd European Energy Conference, Apr 2012, Maastricht, Netherlands. pp.03010, ⟨10.1051/epjconf/20123303010⟩. ⟨in2p3-00872680⟩

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