US 12,115,011 B2
Radiation detector and radiography apparatus
Hisatsugu Horiuchi, Kanagawa (JP); Munetaka Kato, Kanagawa (JP); Tatsuya Taneichi, Kanagawa (JP); Naoyuki Nishino, Kanagawa (JP); and Takeyasu Kobayashi, Kanagawa (JP)
Assigned to FUJIFILM CORPORATION, Tokyo (JP)
Filed by FUJIFILM CORPORATION, Tokyo (JP)
Filed on Jun. 20, 2022, as Appl. No. 17/807,858.
Claims priority of application No. 2021-118903 (JP), filed on Jul. 19, 2021.
Prior Publication US 2023/0016138 A1, Jan. 19, 2023
Int. Cl. A61B 6/00 (2024.01); A61B 6/03 (2006.01); A61B 6/40 (2024.01); G01N 23/046 (2018.01)
CPC A61B 6/4435 (2013.01) [A61B 6/032 (2013.01); A61B 6/4085 (2013.01); G01N 23/046 (2013.01); G01N 2223/419 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A radiation detector comprising:
an imaging sensor unit which includes at least two imaging sensors of a first imaging sensor and a second imaging sensor that have a rectangular plate shape and include pixels that sense radiation, which has been emitted from a radiation source and transmitted through a subject, or visible light converted from the radiation and generate charge and in which a first end portion of the first imaging sensor and a second end portion of the second imaging sensor are arranged to overlap each other in a thickness direction;
a support table to which the imaging sensor unit is attached;
a first fixing member that fixes the first imaging sensor and the second imaging sensor in an overlap region in which the first end portion and the second end portion overlap each other;
a second fixing member that fixes the imaging sensor unit and the support table in the overlap region and at least partially overlaps the first fixing member in the overlap region in a plan view of the imaging sensor unit in the thickness direction;
a spacer that is provided between the first imaging sensor and the support table and has a thickness corresponding to a distance between the first imaging sensor and the support table in a case in which the first imaging sensor is disposed closer to an incident side of the radiation than the second imaging sensor in the thickness direction; and
a third fixing member that fixes the first imaging sensor and the spacer at a position adjacent to the first fixing member.