Design of infrared radiation diagnostic calorimeter for the prototype radio frequency driven negative ion source for neutral beam injection.
Design of infrared radiation diagnostic calorimeter for the prototype radio frequency driven negative ion source for neutral beam injection.
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DOI：
10.1063/1.5130717
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发表时间：
2020-04
期刊：
影响因子：
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通讯作者：
Yongjian Xu;Yahong Xie;Caichao Jiang;Jianglong Wei;Jun Li;Y. Gu;Lingda Yu;L. Liang;Yuanzhe Zha
中科院分区：
文献类型：
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作者：
Yongjian Xu;Yahong Xie;Caichao Jiang;Jianglong Wei;Jun Li;Y. Gu;Lingda Yu;L. Liang;Yuanzhe Zha
为了研究用于中性束注入的负离子的产生和引出，中国科学院等离子体物理研究所正在建造一个射频驱动负离子源的原型和相应的试验台。提出了一种用于束流特性测试的红外辐射诊断量热仪的设计方案。与传统的量热仪相比，该量能器采用了8×28钨六面体的模块化结构和4个模块的模块化设计，具有更高的精度和良好的可扩展性。用有限元方法对量热仪的热性能进行了评估。仿真结果表明，该设计能够在6.45 mW/m2的最大热流密度下实现稳态运行，完全满足束流诊断的要求。
In order to study the generation and extraction of negative ions for neutral beam injection application, a prototype radio frequency driven negative ion source and the corresponding test bench are under construction at the Institute of Plasma Physics, Chinese Academy of Sciences. A new design of infrared radiation diagnostic calorimeter for testing beam characteristics is put forward. Compared with the conventional calorimeter, the calorimeter adopts the block structure (8 × 28 tungsten hexahedron blocks) and modularization design (4 modules), so it has higher precision and good scalability. The thermal performance of the calorimeter is assessed using a finite element method. Simulation results show that the design can be achieved to operate in the stable-state mode at the maximum thermal flux 6.45 MW/m2 and meet the full requirement of beam diagnosis.