PROBLEM TO BE SOLVED: To improve image quality of a picked-up image.SOLUTION: When a projection image 33 of an area of interest 31 at a rotation position θa is imaged by detector panels d1, d2 while rotationally moving the detector panels d1, d2 around the whole circumference of the area of interest 31, the detector panels d1, d2 are respectively moved in a tangential direction r so that the union of the imaging range of the projection image 33 picked up by each of the detector panels d1, d2 contains the entire area of interest 31 with the maximum magnitude, and a tomogram image of the area of interest 31 is reconstructed by using the projection image picked up by each of the detector panels d1, d2.COPYRIGHT: (C)2015,JPO&INPIT【課題】撮像画像の画質を向上させる。【解決手段】検出器パネルd1,d2を関心領域31の全周を回転移動させつつ、回転位置θaにおける関心領域31の投影像33を検出器パネルd1,d2により撮像するときには、検出器パネルd1,d2のそれぞれにより撮像される投影像33の撮像範囲の和集合が関心領域31の全体を最大の大きさで含むように、検出器パネルd1,d2のそれぞれを接線方向rに移動させ、検出器パネルd1,d2によりそれぞれ撮像される投影像を用いて、関心領域31の断層像を再構成する。【選択図】図3
