Wide X-ray spectrum photon counting computed tomography
US9836859B2 · kind B2 · utility
3Cited by
9References
20Claims
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Key dates
| Filing date | Jan 9, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | May 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T7/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computed tomography (CT) imaging apparatus includes a radiation source configured to emit X-rays; a plurality of photon-counting detectors configured to detect X-rays emitted by the radiation source and generate a photon counting signal based on the detected X-rays; and processing circuitry to obtain a kV-waveform used by the radiation source to generate the X-rays during a scan of an object, and adjust at least one energy threshold dividing the photon counting signal into a plurality of spectra bins in accordance with the obtained kV-waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.