PROBLEM TO BE SOLVED: To provide an X-ray imaging system that can decrease the artifact in a reconstructed image.SOLUTION: A solid-state image pick-up device 1 is a device that captures the X ray image while moving around a subject. The solid-state image pick-up device 1 includes a photoreceptor 10 which is formed by two-dimensionally aligned M×N pixels (M and N are integers of at least 2) in M rows and N columns and has a rectangular light-receiving surface. The photoreceptor 10 is arranged so that both of the row direction and the column direction thereof tilt to the movement direction B of the solid-state image pick-up device 1. The row number M is smaller than the column number N in the photoreceptor 10, the shape of the light-receiving surface is a rectangular shape that considers the row direction as a longitudinal direction, the direction along the diagonal line of the rectangular shape crosses with the moving direction of the solid-state image pick-up device 1.COPYRIGHT: (C)2012,JPO&INPIT【課題】再構成画像におけるアーティファクトを低減することができるX線撮像システムを提供する。【解決手段】固体撮像装置1は、被検者の周囲を移動しつつX線像を撮像する装置である。固体撮像装置1は、M×N個(M及びNは2以上の整数)の画素がM行N列に2次元配列されて成り、矩形状の受光面を有する受光部10を有する。受光部10は、その行方向および列方向の双方が、固体撮像装置1の移動方向Bに対し傾斜するように配置される。受光部10における行数Mが列数Nより小さく、受光面の形状が行方向を長手方向とする長方形状であり、該長方形の対角線に沿った方向は固体撮像装置1の移動方向と交差する。【選択図】図5
