PROBLEM TO BE SOLVED: To provide a radiographic apparatus in which an object can be placed properly and a clear phase contrast image can be obtained.SOLUTION: A radiographic apparatus 1 is provided with: a radiation-irradiating unit 11 a first grating 31, which has a periodic structure obtained by the arrangement of multiple linear objects 31b and which forms a radiation image comprising a periodic intensity distribution as a result of radiation passing therethrough a detecting unit 14, which contains a radiographic image detector 30 and acquires radiographic image data by detecting the radiation image that has been irradiated from the radiation-irradiating unit, passed through the first grating and the object, and been modulated by the periodic intensity distribution and a guiding unit 70, which guides the placement of the object in relation to the orientation of the group of linear objects of the first grating.COPYRIGHT: (C)2013,JPO&INPIT【課題】被写体を適切に配置することができ、明瞭な位相コントラスト画像を得ることのできる放射線撮影装置を提供する。【解決手段】放射線撮影装置1は、放射線照射部11と、多数の線状体31bが配列されてなる周期的構造を有し、通過する放射線によって周期的強度分布を含む放射線像を形成する第1の格子31と、放射線画像検出器30を含み、上記放射線照射部から照射され上記第1の格子及び被写体を透過し上記周期的強度分布に変調を受けた上記放射線像を検出して放射線画像データを取得する検出部14と、上記第1の格子の上記線状体の群の配列方向との関係において被写体の配置をガイドするガイド部70と、を備える。【選択図】図11
