Radiation detection apparatus, control method of the same, and radiation imaging system
US11252349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2020 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Aug 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radiation detection apparatus includes a pixel array including pixels each including a conversion element and a switch element, an acquisition unit configured to acquire a first signal generated in the pixel array while at least one switch element of the pixels is in a conductive state, and a second signal generated in the pixel array while the switch elements are in a non-conductive state, an evaluation value determination unit configured to determine, based on the first signal, an evaluation value having a correlation with a radiation dose, a threshold value determination unit configured to determine a threshold value based not on the evaluation value but on the second signal, and a determination unit configured to determine, based on comparison between the evaluation value and the threshold value, whether the pixel array is being irradiated with radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.