| 摘要 |
PURPOSE:To miniaturize the constitution of the titled device and to improve the efficiency of erasion by reading out a radiation image on a fluorescent sheet and erasing the contents of the sheet by the discharge of residual radiation energy in the forward movement and backward movement of a reading/erasing unit to be reciprocated. CONSTITUTION:The reading/erasing unit 4 is moved in an arrow A direction by the forward rotation of a feed screw 51 of a unit moving means 50 and a radiation image accumulated on the fluorescent sheet 2 is read out through a line sensor 40 by radiating excited light based upon a fluorescent lamp 21 in an excited light radiating means 20. At the time of backward movement of the unit 4 by reversing the screw 51, the lamp 21 is turned off and radiation energy left on the sheet 2 is discharged and erased from the sheet 2 by radiated light consisting mainly of light in an excited wavelength area based upon an erasign light source 33 turned on by an erasing means 30. Thus, the erasing efficiency can be improved by the miniaturized constitution providing the erasing means to be moved adjacently to the sheet in the reading/erasign unit.
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