PROBLEM TO BE SOLVED: To provide a grid improved in distance to an effective imaging region and mass against the required relative angle regulation, mechanical strength security and functional achievement of impact protection.SOLUTION: A grid 31 for suppressing scattered rays is removably mounted on the outside of a portable imaging device for imaging a distribution of a radiation having passed through a subject. The grid includes: a grid body disposed on a radiation incidence face side and a frame member 32 having a mounting member for fixing the grid body to the imaging device. The mounting member is provided on a first side, and a second side opposite to the first side, and not provided on a third side connecting between the first side and the second side, and a forth side opposite to the third side. A bending part having such a substantially U-shaped cross section as to hold the imaging device is provided on one of the first side and the second side, and a locking part locked on the side of the imaging device is provided on the other of the first side and the second side.COPYRIGHT: (C)2014,JPO&INPIT【課題】要求される相対角度規制や機械的強度確保、衝撃保護の機能実現に対して、相反していた有効撮影領域までの距離や、質量に関して改善を図ったグリッドを提供する。【解決手段】被写体を透過した放射線分布を撮影する可搬型の撮影装置の外側に着脱可能に取り付けられる散乱線抑制用のグリッド31であって、放射線が入射する面側に配置されるグリッド本体と、グリッド本体を撮影装置に対して固定するための取付け部材を有するフレーム部材32とを備え、取付け部材は、第1辺及び該第1辺に対向する第2辺に備えられ、第1辺と第2辺とを結ぶ第3辺及び該第3辺に対向する第4辺には備えられておらず、第1辺及び第2辺の一方に撮影装置を挟み込むような断面が略コの字状の折り曲げ部を備え、第1辺及び第2辺の他方に撮影装置の側面に係止する係止部を備える。【選択図】図5
