First Wall Evaporation in Inertial Confinement Utilizing Gas Protection Fusion Reactors
نویسندگان
چکیده
The evaporation of inertial confinement fusion first wall materials from unattenuated pellet X-rays and from radiation emitted by a cavit.y buffer qas is examined. The low vapor pressure and low X-ray attenuation coefficient of carbon give it a lower erosion rate than stainless steel, despite the larger thermal conductivity of Type 316 stainless steel. For the argon buffer gas containing 0.2% Na and pellet yield used in this study, a gas density greater than 0.3 torr (O'C) is required to prevent evaporative erosion of a carbon first wall. A gas density greater than 0.9 torr (O'C) is needed to prevent erosion of a stainless steel wall.
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