Temperature effects on formation of a uniform layer of isotopes inside a cryogenic ICF target

摘要

The steady-state motion of a gas bubble inside a non-isothermal, spherical, liquid filled cryogenic target is investigated by taking into account the effects of gravity, the thermally induced gradient of the gas-liquid interfacial tension and the finite size of the liquid container. The net result is an expression for the temperature gradient at the target exterior, which will sustain a uniform liquid layer of hydrogen isotopes inside an ICF target. A simple model was established on the basis of the calculation and analysis above.