US 12,442,940 B2
Radiation detector and radiation imaging system
Kazutaka Osawa, Kanagawa (JP); Takanori Watanabe, Kanagawa (JP); and Tomona Yamaguchi, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 10, 2023, as Appl. No. 18/195,652.
Claims priority of application No. 2022-081821 (JP), filed on May 18, 2022; and application No. 2023-016070 (JP), filed on Feb. 6, 2023.
Prior Publication US 2023/0375722 A1, Nov. 23, 2023
Int. Cl. G01T 1/175 (2006.01)
CPC G01T 1/175 (2013.01) 18 Claims
OG exemplary drawing
 
1. A radiation detector comprising:
a pixel array in which pixels each having a radiation detection element configured to convert radiation into charges and an amplification transistor configured to amplify a signal from the radiation detection element and output the amplified signal are arrayed in a matrix shape; and
signal wiring provided for each pixel column,
wherein a pixel isolation structure formed to surround the radiation detection element in a plan view is provided, and
the amplification transistor is arranged inside a region defined by the pixel isolation structure in a plan view.