PROBLEM TO BE SOLVED: To provide an X-ray detector accommodating case that enables FPD to be used in the most suitable temperature condition and satisfactory X-ray images to be obtained.SOLUTION: An X-ray detector accommodating case comprises: a case body an accommodating unit provided in the case body to accommodate a portable X-ray plane detector whose detecting face is configured by arranging X-ray detecting elements in a matrix a transparent member provided on a side face of the case body opposing the detecting face of the X-ray plane detector accommodated in the accommodating unit to make the detecting face of the detector accommodated in the accommodating unit visible from outside the case body and a temperature controller that so controls the temperature of the X-ray plane detector accommodated in the accommodating unit as to be kept at a prescribed target level.COPYRIGHT: (C)2013,JPO&INPIT【課題】最適な温度状態でFPDを使用でき、良好なX線画像を得ることが可能なX線検出器収容ケースを提供すること。【解決手段】一実施形態に係るX線検出器収容ケースは、ケース本体と、X線検出素子をマトリクス状に配置して検出面を構成した可搬型のX線平面検出器を収容する前記ケース本体に設けられた収容部と、前記収容部に収容された前記X線平面検出器の前記検出面に対向する前記ケース本体の側面に設けられ、前記収容部に収容された当該検出器の前記検出面を前記ケース本体の外部から視認可能とする透明部材と、前記収容部に収容された前記X線平面検出器の温度を所定の目標値に制御する温度制御部と、を備えている。【選択図】 図4