Disclosed is a grid for removing scattered X-rays that enables accurate X-ray imaging of a subject while preventing deterioration of the quality of the X-ray image due to grid artifacts or the like. A grid 1 according to the present invention is used together with an X-ray detector 10 to capture an X-ray image of a subject. The X-ray detector 10 includes a pixel 20 including an imaging unit 11 and a non-imaging unit 12 provided adjacent to the imaging unit 11, and the grid 1 includes an X-ray absorption unit 2, an X-ray absorption unit 2, and an X-ray absorption unit 2. Line transmission part 3. When the total width of the X-ray absorption unit 2 and the X-ray transmission unit 3 of the grid 1 is Wg [μm] and the width of the pixel 20 of the X-ray detector 10 is Wp [μm], the grid 1 is −3 0.0 ≦ Wg−Wp ≦ 3.0, and when the grid 1 is viewed in plan with the grid 1 adjacent to the surface of the X-ray detector 10, at least a part of the X-ray absorber 2 is , Which overlaps with the imaging unit 11 of the X-ray detector 10. [Selection] Figure 1【課題】グリッドアーチファクト等によるＸ線画像の品質低下を防止しつつ、被写体の正確なＸ線撮像が可能な散乱Ｘ線除去用のグリッドを提供する。【解決手段】本発明のグリッド１は、被写体のＸ線画像を撮像するためにＸ線検出器１０とともに用いられる。Ｘ線検出器１０は、結像部１１と、結像部１１に隣接して設けられた非結像部１２とを備えた画素２０を含み、グリッド１は、Ｘ線吸収部２と、Ｘ線透過部３とを含む。係るグリッド１は、グリッド１のＸ線吸収部２およびＸ線透過部３の合計の幅をＷｇ［μｍ］、Ｘ線検出器１０の画素２０の幅をＷｐ［μｍ］としたとき、－３．０≦Ｗｇ－Ｗｐ≦３．０の関係を満たし、グリッド１をＸ線検出器１０の表面に隣接させた状態でグリッド１を平面視した際に、Ｘ線吸収部２の少なくとも一部は、Ｘ線検出器１０の結像部１１と重複する。【選択図】図１
