| 摘要 |
The X-ray radiographic appts. includes a soild-state image sensor having a photoelectric conversion member and a transfer member. A systme controller stops supplying field shift pulses and an electric charge is not transferred from the photoelectric conversion member to the transfer member, during X-ray irradiation until a quantity of X- rays reaches predetermined value. One frame image data from the solid-state image sensor just after X-ray irradiating term is obtained. It is easy to obtain data corresp. to one frame image which is of proper density. The electric signal is read from the transfer member while the system controller has stopped the supplying of field shift pulses. It is possible to suppres an increase of dark current noise, and obtain high quality X-ray image data.
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