US 12,436,301 B2
Readout circuit, radiation detector, imaging apparatus and method of handling incident radiation
Christer Ullberg, Sollentuna (SE)
Assigned to VAREX IMAGING SWEDEN AB, Danderyd (SE)
Filed by VAREX IMAGING SWEDEN AB, Danderyd (SE)
Filed on Jun. 16, 2023, as Appl. No. 18/336,781.
Claims priority of application No. 2250970-7 (SE), filed on Aug. 17, 2022.
Prior Publication US 2024/0061132 A1, Feb. 22, 2024
Int. Cl. G01T 1/24 (2006.01)
CPC G01T 1/24 (2013.01) 19 Claims
OG exemplary drawing
 
1. A readout circuit for a radiation detector comprising a plurality of pixels, the readout circuit being configured to handle input signals from a primary pixel with respect to the readout circuit among the plurality of pixels and comprising:
a charge sharing correction circuit, the charge sharing correction circuit being configured to handle a charge sharing electrical signal representative of a sum of radiation energies from a set of pixels among the plurality of pixels, the set of pixels comprising a secondary pixel with respect to the readout circuit; and
a non-sharing circuit configured to handle a primary electrical signal associated with the primary pixel simultaneously with the handling of the charge sharing electrical signal by the charge sharing correction circuit, the primary electrical signal being representative of a radiation energy from the primary pixel, wherein the non-sharing circuit comprises a non-sharing counter configured to count non-sharing data associated with the non-sharing comparator.