US 12,412,726 B2
X-ray generation device and X-ray imaging system
Hiroki Kawakami, Hamamatsu (JP)
Assigned to HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Appl. No. 18/038,262
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
PCT Filed Sep. 14, 2021, PCT No. PCT/JP2021/033744
§ 371(c)(1), (2) Date May 23, 2023,
PCT Pub. No. WO2022/149310, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 2021-000435 (JP), filed on Jan. 5, 2021.
Prior Publication US 2024/0006145 A1, Jan. 4, 2024
Int. Cl. H01J 35/14 (2006.01); G01N 23/04 (2018.01); G01N 23/083 (2018.01)
CPC H01J 35/147 (2019.05) [G01N 23/04 (2013.01); G01N 23/083 (2013.01); G01N 2223/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An X-ray generation device comprising:
an electron gun emitting an electron beam;
an X-ray generation target including a plurality of target parts generating X-rays in response to incidence of the electron beam from the electron gun; and
an irradiation area switching unit switching an area of the X-ray generation target irradiated with the electron beam between a first irradiation area and a second irradiation area,
wherein the number of target parts included in the first irradiation area is larger than the number of target parts included in the second irradiation area, and
wherein an area of the target parts included in the first irradiation area is larger than an area of the target parts included in the second irradiation area when seen in an incidence direction of the electron beam.