PROBLEM TO BE SOLVED: To readily perform teaching of a partial imaging range in a rotating direction in an imaging system in which an X-ray tube and a detector can be rotated independently of each other so as to draw circular trajectories around the same center point.SOLUTION: First and second support units cause an X-ray tube and a detector to be opposed to each other via a subject, share the same rotating center, and rotatably support the X-ray tube and the detector independently of each other along two rotational trajectories having different diameters from each other. The second support unit that supports the detector is moved to instruct a partial imaging range in a rotating direction (S81 to S87). An X-ray beam emitted from the X-ray tube over the imaging range scans the subject, and control information for rotating the X-ray tube and the detector along those rotational trajectories is produced so that the detector can detect the transmitted X-rays (S92).COPYRIGHT: (C)2014,JPO&INPIT【課題】X線管と検出器が同一中心点の周りに共に円軌道を描くように且つ互いに独立して回転可能な撮像系にて、回転方向の部分的な撮像範囲のティーチングを容易に行う。【解決手段】第1及び第2の支持部は、被検体を挟んでX線管及び検出器を互いに対向させ、かつ、同一の回転中心を持ち、互いに異なる径の2つの回転軌道夫々に沿ってX線管及び検出器を互いに独立して回転可能に支持する。検出器を支持する第2の支持部を移動させて、回転方向における部分的な撮像範囲を指示する(S81~S87)。この撮像範囲にわたってX線管から照射されたX線ビームが被検体をスキャンし、その透過X線を検出器が検出するように、X線管及び検出器をその回転軌道に沿って回転させるための制御情報を生成する(S92)。【選択図】図8
