The design activities of an insulated Plasma Facing Components-Cassette Body (PFCs-CB) support has been carried out under the pre-conceptual design phase for Eurofusion-DEMO Work Package DIV-1 "Divertor Cassette Design and Integration" - Eurofusion Power Plant Physics & Technology (PPPT) program. The Eurofusion-DEMO divertor is a key in-vessel component with PFCs which directly interact with the plasma scrape-off layer. The PFCs have to cope with high heat loads, neutron irradiation and electromagnetic loads. The mechanical integrity of the PFCs and water cooling pipes can be jeopardized by high heat loads and by electromagnetic loads generated in a disruption event. In European-DEMO the possibility to estimate the heat load by measuring the relative thermocurrents is under investigation. In order to allow thermocurrents measurements, a divertor design option provides that PFCs are electrically insulated from CB. In this work authors aim to analyze the opportunity that the PFC-CB fixing system incorporates an electrical insulation system, thus acquiring also an important diagnostic role in the measurement of the thermocurrents and in the management of the current flows. The possible use of ceramic material (e.g. alumina) as the insulating layer between the support components is investigated.

中文翻译：

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Eurofusion-DEMO 中面向等离子体的部件与偏滤器盒的绝缘固定系统

在 Eurofusion-DEMO 工作包 DIV-1“导流器盒设计和集成”- Eurofusion 电厂物理的概念前设计阶段，已开展绝缘等离子面组件-盒体 (PFCs-CB) 支架的设计活动与技术 (PPPT) 计划。Eurofusion-DEMO 偏滤器是具有 PFC 的关键容器内组件，可直接与等离子体刮除层相互作用。PFC 必须应对高热负荷、中子辐射和电磁负荷。PFC 和水冷管道的机械完整性可能会受到高热负载和中断事件中产生的电磁负载的危害。在 European-DEMO 中，正在研究通过测量相对热电流来估计热负荷的可能性。为了允许热电流测量，偏滤器设计选项规定 PFC 与 CB 电绝缘。在这项工作中，作者旨在分析 PFC-CB 固定系统结合电气绝缘系统的机会，从而在热电流测量和电流管理中也获得重要的诊断作用。研究了陶瓷材料（例如氧化铝）作为支撑部件之间的绝缘层的可能用途。