Sensitivity of ICF ignition conditions to non-Maxwellian DT fusion reactivity
AWE plc, Aldermaston, Reading, Berkshire RG7 4PR, UK
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Published online: 15 November 2013
The hotspot ignition conditions in ICF are determined by considering the power balance between fusion energy deposition and energy loss terms. Uncertainty in any of these terms has potential to modify the ignition conditions, changing the optimum ignition capsule design. This paper considers the impact of changes to the DT fusion reaction rate due to non-thermal ion energy distributions. The DT fusion reactivity has been evaluated for a class of non-Maxwellian distributions representing a perturbation to the tail of a thermal distribution. The resulting reactivity has been used to determine hotspot ignition conditions as a function of the characteristic parameter of the modified distribution.
© Owned by the authors, published by EDP Sciences, 2013
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