PROBLEM TO BE SOLVED: To provide an electronic cassette having one radiation detection part in which influence of deterioration by radiation is prevented from being biased even if repeatedly used.SOLUTION: Each of two cabinets includes a drive mechanism in which the radiation detection part can be housed. Since an area of the radiation detection part exposed to the outside and an exposure position are made changeable, and only the same exposure position is prevented from being repeatedly used, deterioration of the radiation detection part by radiation can be dispersed.COPYRIGHT: (C)2012,JPO&INPIT【課題】繰り返し使用しても、一枚の放射線検出部の中で放射線による劣化の影響が偏ることがない電子カセッテを提供する。【解決手段】2つの筐体のそれぞれに放射線検出部を収容可能な駆動機構を備え、外部に露出する放射線検出部の面積および放射線検出部上の露出位置を変更可能とし、同じ露出位置のみが繰り返し使用されることがないようにしたため、放射線による放射線検出部の劣化を分散することができる。【選択図】図1
