[en] Purpose: To simplify the structure and facilitate the control for heat exchanging efficiency of a divertor using liquid metals. Constitution: In a divertor disposed at the inlet of an exhaust duct disposed to the opening of a plasma-confining blanket, liquid metals forming neutralizing portion with free surface and electrodes are contained within a pool divided in the toroidal direction. Charged particles are neutralized satisfactorily for a long period of time with the free surface of the liquid metals such as Pb or Li, while the liquid metals passing through cooling pipeways are removed with heat. Further, by supplying an electrical current between electrodes in the pool, eddy currents caused by the interaction with the magnetic field of the thermonuclear device causes positive convections to conduct heat removal satisfactorily. It is possible to optionally control the heat removing efficiency by adjusting the value of the current. (Kamimura, M.)