PROBLEM TO BE SOLVED: To suppress, in a Talbot interferometer or a Talbot-Lau interferometer including an X-ray detector constructed by arranging a plurality of radiation detection element arrays, an influence on a diagnostic image due to overlapping between an area of interest and a junction part between the radiation detection element arrays at the time of imaging.SOLUTION: At an X-ray imaging device 1, a subject table 13 is provided with an interest area placing unit 131, on which an area of interest of a subject is placed, in which arrangement is made so that when viewed in an X-ray irradiation direction, junction parts 161 and 162 between radiation detection element arrays 16a to 16d of an X-ray detector 16 do not overlap the interest area placing unit 131.COPYRIGHT: (C)2015,JPO&INPIT【課題】複数の放射線検出素子アレイを配列して構成されたX線検出器を備えたタルボ干渉計やタルボ・ロー干渉計において、撮影時に放射線検出素子アレイの接合部と関心領域とが重なることによる診断画像への影響を抑制する。【解決手段】X線撮影装置1において、被写体台13には、被写体の関心領域を載置するための関心領域載置部131が設けられ、X線照射方向に見て、X線検出器16における放射線検出素子アレイ16a~16dの接合部161、162と、関心領域載置部131とが重ならないように配置されている。【選択図】図7A
