HEAT ENERGY ACCUMULATING AND TRANSMITTING ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a heat energy accumulating and transmitting assembly for an electron beam generating device generating residual energy consisting of radiation heat energy and kinetic energy of back-scattered electrons are generated. SOLUTION: This heat energy accumulating and transmitting device 88 has a mainbody having a sufficient heat capacity to allow a transmissivity such that a amount of absorbed residual energy flows into an assembly to substantially exceed a transmissivity such that the amount of residual energy flows out of the heat accumulating assembly, whereby the residual energy is absorbed and accumulated for reducing heat lead on other components in an electron beam generating device 16, and a heat exchange chamber filled with circulating fluid for transmitting the heat energy to the outside. An X-ray permeable filter adequate to absorb the residual energy is arranged between an anode 80 and an X-ray permeable window.