Fractionation of Fusion Fuel in ICF Capsules: Inertial confinement fusion (ICF)
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Contact: Wolf Seka (585) 275-3815; fax: (585) 275-5960; e-mail: [email protected] http://www.lle.rochester.edu John M. Soures (585) 275-3866; fax: (585) 256-2586; e-mail: [email protected] Fractionation of Fusion Fuel in ICF Capsules: Inertial confinement fusion (ICF) ignition target designs typically assume a homogenous layer of an equimolar mixture of deuterium and tritium fuel kept roughly at or just below the triple point. Since each component in this mixture has a different triple point, there may be a tendency for the isotopes to separate (fractionate) into one-isotope-rich regions when the liquid is frozen or the solid sublimes during layering, as shown in Fig. 1.
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