Radiation imaging apparatus, radiation imaging system, and radiation imaging method
US11686691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | May 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radiation imaging apparatus that obtains a radiation image by an energy subtraction method. Each pixel includes a conversion element that converts radiation into an electrical signal and a reset portion that resets the conversion element. Each pixel performs an operation of outputting a first signal corresponding to an electrical signal generated by the conversion element in a first period, and an operation of outputting a second signal corresponding to an electrical signal generated by the conversion element in the first period and a second period. Radiation having first energy is emitted in the first period, and radiation having second energy is emitted in the second period. In each pixel, the reset portion does not reset the conversion element during a period that includes the first period and the second period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.