Radiation imaging apparatus, radiation imaging system, drive method for radiation imaging apparatus, and non-transitory computer-readable storage medium
US11194058B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Aug 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/57
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radiation imaging apparatus is provided. The apparatus comprises pixels configured to detect radiation with a first sensitivity and a second sensitivity lower than the first sensitivity. Each of the pixels starts an operation for accumulating a signal with the first sensitivity in accordance with a start of irradiation of the radiation imaging apparatus with radiation, samples an accumulated signal as a first signal after lapse of a first time shorter than a period of irradiation with radiation since a start of an operation for accumulating a signal, switches to the second sensitivity, and accumulates a signal, samples an accumulated signal as a second signal in accordance with an end of irradiation of the radiation imaging apparatus with radiation, and outputs the first signal and the second signal to generate a radiation image based on the first signal and the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.