PROBLEM TO BE SOLVED: To enable a radiation image to be erased according to the conveyance direction of a stimulable phosphor sheet without increasing the thickness of a device.SOLUTION: A radiation image erasing device comprises a first light source which emits a first erasing light including a wavelength component of the UV region on a stimulable phosphor sheet on which radiation image has been recorded and stored, a second light source which is placed at the same height as the first light source relative to the stimulable phosphor sheet and emits a second erasing light including a wavelength component of longer wavelength component than that of the first erasing light on the stimulable phosphor sheet on which the first erasing light has been emitted by the first light source, driving means which changes directions or positions of the first light source and the second light source, and control means which controls the driving means according to the conveyance direction of the stimulable phosphor sheet so that the first erasing light and the second erasing light are emitted on the stimulable phosphor sheet in this order.COPYRIGHT: (C)2013,JPO&INPIT【課題】装置の厚みを増すことなく、蓄積性蛍光体シートの搬送方向に応じて放射線画像を消去することができる。【解決手段】放射線画像消去装置は、放射線画像が蓄積記録された蓄積性蛍光体シートに、紫外線領域の波長成分を含む第1の消去光を照射する第1の光源と、前記蓄積性蛍光体シートに対して前記第1の光源と同一の高さに配置され、前記第1の光源により前記第1の消去光が照射された前記蓄積性蛍光体シートに、前記第1の消去光の波長成分より長波長の波長成分を含む第2の消去光を照射する第2の光源と、前記第1の光源及び前記第2の光源の向き又は位置を切り替える駆動手段と、前記第1の消去光及び前記第2の消去光が、この順序で前記蓄積性蛍光体シートに照射されるように、前記蓄積性蛍光体シートの搬送方向に応じて前記駆動手段を制御する制御手段と、を備える。【選択図】図1
