Journal
NUCLEAR FUSION
Volume 52, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0029-5515/52/10/103011
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Funding
- 'Ramon y Cajal' of the Spanish Ministry of Education and Research (MEC) [2007-00447]
- EURATOM/CIEMAT association in the framework of the 'IFE Keep-in-Touch Activities'
- MEC [ENE-2009-11668]
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The nuclear fusion cross-section is modified when the spins of the interacting nuclei are polarized. In the case of deuterium-tritium it has been theoretically predicted that the nuclear fusion cross-section could be increased by a factor delta = 1.5 if all the nuclei were polarized. In inertial confinement fusion this would result in a modification of the required ignition conditions. Using numerical simulations it is found that the required hot-spot temperature and areal density can both be reduced by about 15% for a fully polarized nuclear fuel. Moreover, numerical simulations of a directly driven capsule show that the required laser power and energy to achieve a high gain scale as delta(-0.6) and delta(-0.4) respectively, while the maximum achievable energy gain scales as delta(0.9).
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