公开(公告)号：US20240347309A1

公开(公告)日：2024-10-17

申请号：US18629874

申请日：2024-04-08

Applicant: FUJIFILM Healthcare Corporation

Inventor： Ren SONODA ,  Yutaro TANABE ,  Kimihiro NAKAYAMA

IPC: H01J35/10 ,  A61B6/03 ,  H01J35/18

CPC classification number: H01J35/106 ,  A61B6/035 ,  H01J35/18 ,  H01J2235/122 ,  H01J2235/127 ,  H01J2235/1275

Abstract: Provided are an X-ray tube device and an X-ray CT apparatus, which are capable of improving cooling efficiency of a stator coil together with cooling efficiency of an X-ray window.
An X-ray tube device includes an X-ray tube including an envelope that holds, in a vacuum, a cathode generating an electron beam and an anode emitting an X-ray by collision of the electron beam, and an X-ray window through which the X-ray is transmitted; a stator coil configured to generate a driving force for rotating the anode; a tube container configured to accommodate the X-ray tube and the stator coil together with insulating oil; and a cooler configured to cool the insulating oil, in which the X-ray tube device further includes a first inflow port connected to a pipe linking the tube container and the cooler and disposed near the X-ray window, a second inflow port connected to the pipe and disposed near the stator coil, and a controller configured to cause the insulating oil to flow into the tube container through the first inflow port in a case where the X-ray is emitted and to cause the insulating oil to flow into the tube container through the second inflow port in a case where the X-ray is not emitted.