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AssigneeFuji Photo Film Co., Ltd.
InventorsToshitaka Aagano, Yoshimi Takasaki
Estimating the term…
In a radiation image recording and reproducing system using a stimulable phosphor sheet, a voltage generated at a bleeder resistor of a photomultiplier for conducting image read-out is detected at the step of radiation image read-out at least for the stimulable phosphor sheet or a portion thereof where the level of X-ray exposure amount is higher than a predetermined level, and the exposure amount of erasing light is controlled on the basis of the detected voltage. Or, the erasing light exposure amount is controlled on the basis of an output current of the photomultiplier when the output current is equal to or smaller than a predetermined value when is smaller than a saturated value of the output current, and the bleeder resistor voltage of the photomultiplier is detected and the erasing light exposure amount is controlled on the basis of the detected voltage when the output current of the photomultiplier is larger than the predetermined value.
A method of erasing a residual image on a stimulable phosphor sheet in which a stimulable phosphor sheet capable of being repeatedly used for radiation image recording and read-out is exposed to erasing light after radiation image read-out, and the residual image caused by residual radiation energy on the stimulable phosphor sheet is erased,
A method of erasing a residual image on a stimulable phosphor sheet in which a stimulable phosphor sheet capable of being repeatedly used for radiation image recording and read-out is exposed to erasing light after radiation image read-out, and the residual image caused by residual radiation energy on the stimulable phosphor sheet is erased,
An apparatus for erasing a residual image on a stimulable phosphor sheet, which comprises:
An apparatus for erasing a residual image on a stimulable phosphor sheet, which comprises:
Dependencies are inferred from the claim text.