关键词: ITER, 偏滤器, 朗缪尔探针

Abstract:

Physics requirements analysis and structure design of ITER divertor Langmuir probes are performed, and the installation height range of probe relative to the surface of the divertor monoblock is determined. Temperature field and stress field under steady state heat load of Langmuir probe are obtained by the structure design and the thermal and mechanical simulation. The maximum temperature of probe is lower than that of divertor monoblock, and the stress of Langmuir probe is lower than the yield strength of the material. At the same time, probe manufacture and connection technology are explored and developed. The forged tungsten material is selected initially to make probe body and tungsten shield. The aluminum oxide ceramic is used between the probe body and the tungsten shield for insulation, and special technology is used for bonding probe body, ceramic and tungsten shield.

Key words: ITER, Divertor, Langmuir probe