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.

我们研究了在重离子惯性聚变（HIF）系统中，在粒子加速器中辐射离子所引起的辐射损伤，因为无线电激活是实现未来HIF电厂所不可避免的问题。在这项研究中，我们估计了HIF加速器各部分的放射性。使用库仑势垒引起的碰撞进行评估可以更安全地估算真空容器壁的放射性。入射离子与壁元素之间核反应总截面的估计结果表明，HIF加速器中可能存在放射性活化部分。我们指出，已评估了两种类型的具有核反应截面的HIF促进剂的示意图，并评估了HIF促进剂的活化面积。