PROBLEM TO BE SOLVED: To provide an electronic cassette which achieves the prevention of separation of impact absorbers from its corners, while maintaining handleability.SOLUTION: An impact absorber 14 is attached to a corner 13 of a housing 11 of an electronic cassette 2 in such a manner that its external surface fits in a surface produced by extending an external surface of the housing 11. A hole 21 and a protrusion 24 for making the impact absorber 14 engage with the corner 13 in a detachable manner are provided on joint surfaces 20, 23 of the corner 13 and the impact absorber 14. Quadrangular prism-shape protrusions 22 and holes 25 for restricting the rotation of the impact absorber 14 relative to the corner 13 are also provided on the joint surfaces 20, 23.COPYRIGHT: (C)2014,JPO&INPIT【課題】ハンドリング性能を維持し、かつ衝撃吸収材が角部から外れにくい電子カセッテを提供する。【解決手段】電子カセッテ2の筐体11の角部13には、その外表面が筐体11の外表面を延長した面内に収まるよう衝撃吸収材14が取り付けられている。角部13と衝撃吸収材14の接合面20、23に、角部13に衝撃吸収材14を着脱自在に嵌合するための穴21および突起24と、角部13に対する衝撃吸収材14の回転を規制するための四角柱状の突起22および穴25とを設ける。【選択図】図2