PROBLEM TO BE SOLVED: To prevent damage to a phosphor when causing a sensor panel of a radiographic image detector to curve to improve sharpness of an image.SOLUTION: A radiographic image detector 3 comprises: a phosphor 60 containing a fluorescent material which emits fluorescent light due to radiation exposure and a sensor panel 61 that is provided in close contact with the phosphor and that detects fluorescent light emitted by the phosphor. The phosphor includes a columnar part composed of aggregations of columnar crystals 82 formed by columnar growth of crystals of the fluorescent material. A radiation incident surface is provided on an opposite side of the phosphor of the sensor panel. The sensor panel is flexible and is curved so that a curvature center is located on the radiation incident surface side.COPYRIGHT: (C)2012,JPO&INPIT【課題】放射線画像検出装置のセンサパネルを湾曲させて画像の鮮鋭度を向上させるにあたって、蛍光体の損傷を防止する。【解決手段】放射線露光によって蛍光を発する蛍光物質を含有した蛍光体60と、前記蛍光体が密接して設けられ、前記蛍光体が発する蛍光を検出するセンサパネル61と、を備える放射線画像検出器3であって、前記蛍光体は、前記蛍光物質の結晶が柱状に成長してなる柱状結晶82の集合体からなる柱状部を含み、前記センサパネルの前記蛍光体とは反対側に放射線入射面が設けられ、前記センサパネルは、可撓性を有し、前記放射入射面側に曲率中心が位置するように湾曲されている。【選択図】図12
