Limiter for thermonuclear device

Multi-layered corrugated plates of low bending rigidity and high heat conductivity are disposed between limiter surface material and cooling pipes for cooling them. The multi-layered corrugated plates and the limiter surface materials, as well as the multi-layered corrugated plates and cooling pipes are respectively bonded metallurgically with each other. This can facilitate the bonding and the temperature of the limiter surface materials can be kept sufficiently low relative to the high temperature load from plasmas. Further, there is neither destruction of the limiter surface materials and the cooling pipes nor the crack at the metallurgical bonded faces and they can withstand high temperature load. (Y.Y.)