US 11,721,515 B2
X-ray module
Atsushi Ishii, Hamamatsu (JP); Ginji Sugiura, Hamamatsu (JP); and Akihito Kobayashi, Hamamatsu (JP)
Assigned to HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Filed on Jan. 6, 2022, as Appl. No. 17/569,686.
Claims priority of application No. 2021-009020 (JP), filed on Jan. 22, 2021; and application No. 2021-009025 (JP), filed on Jan. 22, 2021.
Prior Publication US 2022/0238292 A1, Jul. 28, 2022
Int. Cl. H01J 35/14 (2006.01); H05G 1/02 (2006.01)
CPC H01J 35/153 (2019.05) [H05G 1/025 (2013.01); H01J 2235/1216 (2013.01); H01J 2235/1245 (2013.01); H01J 2235/1291 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An X-ray module comprising:
a housing;
an electron gun that emits an electron beam inside the housing;
a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; and
a deflection unit including a permanent magnet and disposed outside the housing, to deflect the electron beam by means of a magnetic force of the permanent magnet,
wherein the deflection unit includes a heat insulating member disposed at least between the permanent magnet and the housing, and
a thermal conductivity of the heat insulating member is lower than a thermal conductivity of the permanent magnet.