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为SPARC托卡马克开发一个热诊断系统

M O Hanson¹, A Q Kuang¹, R Kulchy¹

¹Commonwealth Fusion Systems, Devens, Massachusetts 01434, USA.

The Review of scientific instruments

|October 1, 2024

概括

在SPARC托卡马克需要先进的热诊断来管理极端的热流. 新的传感器系统将监测容器内的温度,确保结构完整性并了解第一面墙上的能量沉积.

科学领域:

核聚变能源的研究.
血物理学的等离子体物理学
材料科学是一种材料科学.

背景情况:

SPARC托卡马克面临着前所未有的GW/m2热流,需要强大的功率排气管理.
反应堆级核聚变装置需要精确监测面向等离子体的组件温度.

研究的目的:

在SPARC中部署一个用于测量船内结构温度的热诊断套件.
为了确保第一面墙壁组件不超过设计限制,并绘制能量沉积的地图.
在极端的聚变反应堆条件下验证传感器性能.

主要方法:

使用高密度热电偶阵列和纤维布拉格格用于温度测量.
使用转移器目标作为热量计来解决温度分布.
设计系统以实现超高真空兼容性,抗辐射和暴露.

主要成果:

最初的传感器测试证实捕获了射间结构温度变化.
面向等离子体的材料的内射测量需要基于模型的解释工具进行分析.
通过 toroidal 冗余和仔细的材料选择来解决系统弹性.

结论:

开发的热诊断套件对于SPARC的运营成功和安全至关重要.
需要先进的解释工具来实时分析等离子体-物质相互作用.
传感器的存活性和冗余性是核聚变反应堆长期运行的关键考虑因素.

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