Patent ID: 6507040
Filing Date: 2003-01-14
Classification: G01T

Abstract:
A radiation image read-out apparatus comprising:a line stimulating light beam source which projects a line stimulating beam extending in a main scanning direction onto a stimulable phosphor sheet storing thereon radiation image information; stimulated emission detecting means for receiving stimulated emission emitted upon exposure to the line stimulating beam from a line portion of the stimulable phosphor sheet exposed to the line stimulating beam and for converting the amount of stimulated emission received to an electric signal; sub-scanning means for moving the line stimulating beam and the stimulated emission detecting means relative to the stimulable phosphor sheet in a sub-scanning direction; image signal read-out means for reading out the output of the stimulated emission detecting means; wherein the stimulated emission detecting means has a light receiving face having a width in a transverse direction of the line portion of the stimulable phosphor sheet exposed to the line stimulating beam, such that 30% to 90% of the amount of stimulated emission corresponding to a part of the stimulated emission spreading beyond a width of the line stimulating beam as measured on a plane of the light receiving face of the stimulated emission detecting means is receivable by the light receiving face in addition to the amount of stimulated emission corresponding to the width of the line stimulating beam.