PROBLEM TO BE SOLVED: To provide an electronic cassette which can prevent generation of a scratch on the surface of a radiation detector when a casing is attached/detached to/from an electronic cassette body or when the electronic cassette body is conveyed at a state that the casing is attached, of which the durability and the reliability to an image diagnostic property are high, and which is excellent also in user-friendliness and convenience of storage, etc., and the electronic cassette body to be incorporated into the electronic cassette.SOLUTION: An electronic cassette 24 has: an electronic cassette body 30 which surrounds a radiation detector 44 which detects radiation X which has transmitted through a patient 14 to be converted into radiation image information and a casing 32 into which the electronic cassette body 30 is inserted, in which the electronic cassette body 30 has a plurality of holes 68, 66 at an upper surface part and a lower surface part of it, respectively, and the casing 32 has a projected part 58 to be engaged into the holes 66 at its bottom surface part, and has a movable pawl 60 to be engaged into the holes 68 at a support part 57.COPYRIGHT: (C)2012,JPO&INPIT【課題】電子カセッテ本体からケーシングを着脱する際に、あるいはケーシングを装着した状態で電子カセッテ本体を運搬する際に、放射線検出器の表面に擦り傷が発生するのを防止することができ、耐久性や画像診断性に対する信頼性が高く、且つ使い勝手や収納等の利便性にも優れた電子カセッテ及び電子カセッテに組み込まれる電子カセッテ本体を提供する。【解決手段】患者14を透過した放射線Xを検出して放射線画像情報に変換する放射線検出器44を囲繞する電子カセッテ本体30と、前記電子カセッテ本体30を挿入するケーシング32と、を有する電子カセッテ24であって、電子カセッテ本体30はその上面部と下面部にそれぞれ複数の穴部68、66を有し、前記ケーシング32はその底面部に前記穴部66に係合する突起部58を有するとともに支持部57に前記穴部68に係合する可動爪60を有する。【選択図】図3
