PROBLEM TO BE SOLVED: To provide a radiation image detector having excellent image quality and durability.SOLUTION: A radiation image detector 1 comprises: a phosphor 10 which contains a fluorescent substance emitting fluorescence by radiation exposure a thin film type sensor part 11 which adjoins a radiation incidence side of the phosphor, is supported by the phosphor, and detects fluorescence generated on the phosphor a moistureproof part 12 which covers at least a part of the back surface on a side opposite to the phosphor side of the sensor part, and suppresses permeation of moisture into the sensor part.COPYRIGHT: (C)2012,JPO&INPIT【課題】画質及び耐久性に優れる放射線画像検出装置を提供する。【解決手段】放射線画像検出装置1は、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10と、前記蛍光体の放射線入射側に隣設されて該蛍光体によって支持され、前記蛍光体に生じた蛍光を検出する薄膜型のセンサ部11と、前記センサ部の前記蛍光体側とは反対側の裏面の少なくとも一部を覆い、前記センサ部への湿気の浸潤を抑制する防湿部12と、を備える。【選択図】図1
