THE ANALYZE OF VACUUM AND HEAT LOAD FOR TS OF EAST TOKAMAK

The thermal shield（TS） is a main part of EAST superconducting Tokamak.The helium leakage from TS is estimated and the leak detecting of TS is described.The heat load to the vacuum vessel thermal shield（VVTS） is analyzed by FLUENT finite element software in order to demonstrate that the design of cooling tubes is reliable.