High DQE photon counting detector using statistical recovery of pile-up events
US7696483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Aug 10, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/773
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photon-counting detector includes a direct conversion material and a data acquisition system with a first comparator having a first signal level threshold indicative of a noise level of a spectrum of photons, the first comparator configured to output a count when the electrical signal level exceeds the first signal level threshold, and a second comparator having a second signal level threshold indicative of the maximum energy of the spectrum of photons, the second comparator configured to output a count when the electrical signal exceeds the second signal level threshold where a photon count is determined based on the counts from the first and second comparators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.