X-ray detector operable in a mixed photon-counting/analog output mode
US9897707B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 20, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | May 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2018
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for X-ray detection using a charge-integrating X-ray detector including a photodetector array of pixels, each of which converts incident radiation into accumulated charge during an X-ray exposure, is provided. The method includes, for each pixel, reading out the accumulated charge from the pixel and determining an X-ray charge value from the read out accumulated charge. If the X-ray charge value is less than a photon counting threshold, the X-ray charge value is replaced with a quantized charge value representative of an estimated photon count and recording the quantized charge value as a recorded charge value. If, however, the X-ray charge is equal to or greater than the photon counting threshold, the X-charge value is recorded as the recorded charge value. The method allows operating a charge-integrating X-ray detector in a mixed photon-counting/analog output mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.