Radiation imaging apparatus and radiation imaging system
USRE49401E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Aug 14, 2038 |
Classification
- Technology area (CPC —)General
Abstract
A radiation imaging apparatus includes a pixel array having pixels including conversion elements and switching elements, a bias line for supplying a bias potential to the conversion elements; driving lines for supplying a signal to control the switching elements, a driving unit for performing an initialization operation of supplying a driving signal to each driving line group, switching each driving signal from an OFF voltage to an ON voltage, and then returning the driving signal to the OFF voltage; an acquisition unit configured to acquire a plurality of times in each driving cycle a signal value representing a current flowing through the bias line; a calculation unit configured to calculate radiation information based on the signal values; and a determination unit configured to determine whether irradiation of the pixel array with radiation is present based on the radiation information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.