Patent ID: 8721177

Claim:
An X-ray CT scanner comprising: a gantry; a revolving body provided inside the gantry and capable of rotation; an X-ray tube assembly provided within the revolving body, proximate an outer surface thereof; an X-ray detector provided within inside the revolving body positioned proximate an outer surface thereof, opposite to the X-ray tube assembly; a heat radiator, provided within the revolving body, said heat radiator thermally coupled to the X-ray tube assembly by a heat transfer member, said heat radiator comprising: a heat storage material thermally coupled to the heat transfer member, wherein said heat storage material is one of a hydrated inorganic salt or an organic compound, said inorganic salt or organic compound having a melting heat of from 157 kJ/kg to 264 kJ/kg; a heat exchanger part thermally coupled to the heat storage material; and a heat sink thermally coupled to the heat exchanger, wherein said heat sink is provided proximate the outer surface of the revolving body; a fan provided on an inner surface of the gantry, said fan positioned to be aligned with said heat radiator when said revolving body is stationary.