Abstract
We investigated radiation damages induced by irradiating ions in a particle accelerator for a heavy-ion inertial fusion (HIF) system, because the radio-activation is an unavoidable issue to realize the future HIF power plant. In this study, we estimated the radio-activation at each part of the HIF accelerator. An evaluation using collisions due to Coulomb barrier gives the safer estimation in the radio-activation of the vacuum vessel wall. The estimation results of total cross sections of nuclear reactions between an incident ion and wall elements showed the potential radio-activation parts in the HIF accelerator. We indicated that schematic layouts of two types of HIF accelerators with the nuclear reaction cross section, and the activated area for the HIF accelerator was evaluated.
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