Compensation for charge sharing between detector pixels in a pixilated radiation detector
US11246547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jul 17, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4042
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Various aspects include methods for compensating for the effects of charge sharing among pixelate detectors in X-ray detectors by applying a correspondence factor to counts of X-ray photons in energy bins to estimate incident X-ray photon energy bins. The correspondence factor may be determined by determining an incident X-ray photon energy spectrum, adjusting the incident X-ray photon energy spectrum to account for an energy resolution of the pixelated detector, generating a charge sharing model for the adjusted incident X-ray photon energy spectrum based on a percentage charge sharing parameter of the pixelated detector, applying the charge sharing model to energy bins of the pixelated detector to estimate counts in each of the energy bins, and determining the correspondence factor by comparing the estimated counts in each of the energy bins to counts in the energy bins that would be expected for the adjusting the incident X-ray photon energy spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.