TUBE HEATING SYSTEM FOR VACUUM VESSEL OF A TOKAMAK

摘要

PURPOSE: A heating structure for a vacuum container coating flow path of a tokamak is provided to prevent or minimize an influence due to mutual magnetic field with a vacuum container by installing a heating unit apart form a coating flow path. CONSTITUTION: A vapor state of carborane is injected into a coating flow path so as to reduce internal contaminants of a vacuum container of a tokamak. A heating unit(110) heats gas. A heat exchange unit(120) is formed to cover an outside of a coating flow path. The heat exchange unit has a circulation path through the heated gas is moved. The heat exchange unit maintains the vapor state of carborane and supplies the vapor state of carborane to the vacuum container.