Apparatus and method for computing detector response of a photon-counting detector
US9476993B2 · kind B2 · utility
5Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computed tomography (CT) apparatus and a method for determining response of a photon-counting detector of a CT scanner. Based on a count rate of an incident spectrum and a dead time parameter of the photon-counting detector, a highest pileup order that has a contribution towards an output spectrum of the photon-counting detector greater than a threshold corresponding to the pileup order is determined. In computing the overall output spectrum of the photon-counting detector, only the spectra corresponding to pileup orders lower than or equal to the highest pileup order are considered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.