US 12,484,135 B2
X-ray tube
Toshimi Watanabe, Yaita (JP); and Junki Sone, Nasushiobara (JP)
Assigned to CANON ELECTRON TUBES & DEVICES CO., LTD., Otawara (JP)
Filed by CANON ELECTRON TUBES & DEVICES CO., LTD., Otawara (JP)
Filed on Jun. 20, 2023, as Appl. No. 18/337,558.
Application 18/337,558 is a continuation of application No. PCT/JP2021/019174, filed on May 20, 2021.
Claims priority of application No. 2020-211339 (JP), filed on Dec. 21, 2020.
Prior Publication US 2023/0337348 A1, Oct. 19, 2023
Int. Cl. H01J 35/00 (2006.01); H01J 35/08 (2006.01); H05G 1/10 (2006.01)
CPC H05G 1/10 (2013.01) [H01J 35/08 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An X-ray tube, comprising:
a vacuum enclosure in which an output window which transmits X-rays is formed;
an anode target provided in the vacuum enclosure so as to oppose the output window;
a cathode filament, provided in the vacuum enclosure, that emits electrons to be irradiated onto the anode target;
a power feed section to which a high-voltage cable is connected to supply high voltage to the anode target;
an insulating portion that covers the power feed section and the high-voltage cable with an insulating material, wherein
the power feed section includes a contact surface with which a distal end surface of the high-voltage cable is brought into contact,
an angle formed by the contact surface and a side surface of the high-voltage cable is an acute angle,
the high-voltage cable includes a core material in which the high voltage is applied and a coating material that covers the core material,
the core material and the coating material are present on the distal end surface of the high-voltage cable,
the core material of the high-voltage cable is connected to the contact surface, and
the coating material is brought into contact with the contact surface.