IsotopIc FractIonatIon DurIng solIDIFIcatIon
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چکیده
LLE Review, Volume 105 26 Introduction In inertial fusion experiments, it is energetically advantageous to form the fuel into a solid shell before compression.1 Current cryogenic target experiments on OMEGA are being performed with pure deuterium (D2) as the fuel. 2 Future cryogenic target experiments will be performed with an equimolar solid mixture of deuterium and tritium (D-T). An equilibrium D-T mixture consists of D2, DT, and T2 molecules in a 25:50:25% ratio. Each molecular species has a different triple point, which may lead to fractionation of the isotopes during fuel-layer formation. Spatial separation of the D and T nuclei due to isotopic fractionation during the cryogenic target layering process reduces the efficiency of the fusion reaction.3
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