Analysis of accidents for substantiating the safety of a helium-cooled test module with a ceramic breeder

We present the safety analysis of a helium-cooled test module with a ceramic breeder performed to substantiate the test blanket module (TBM) safety in the scope required for the licensing of work on its fabrication and maintenance. For the postulated initial events of accidents the thermohydraulic parameters and stress-strained state of the TBM have been analysed. It was shown that the TBM parameters do not exceed the allowable values in normal operation and the safe operation limits during accidents.