| 摘要 |
A stimulable phosphor sheet, on which radiation image information has been stored, is exposed to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to radiation. Light, which is emitted from opposite surfaces of the stimulable phosphor sheet when the stimulable phosphor sheet is exposed to the stimulating rays, is detected, and two original image signals representing the radiation image information are acquired. A read-out sensitivity and/or a read-out gain with respect to at least either one surface side of the stimulable phosphor sheet at the time of the image signal acquisition is controlled in accordance with specifications of the stimulable phosphor sheet.
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