To provide a mammography apparatus with a movable radiation source for imaging, which can constrain the apparatus from becoming larger when a protection member for protecting the subject is installed.SOLUTION: A mammography apparatus 10 includes: a radiation source 29 for irradiating the breasts of a subject with radiation； a support part 22 for supporting the radiation source 29 rotatably around an axis 23 and moving the radiation source 29 to a plurality of imaging positions where incidence angles of the radiation to the breasts are different from each other； a face guard 32 for protecting the subject from the radiation irradiated from the radiation source 29； and at least one pair of arms 36, one end of which is rotatably connected to the face guard 32 and the other end of which is rotatably connected to a holding part 18 that remains stationary with respect to the rotation of the radiation source 29, and which includes a bending portion 37 between the one end and the other end and is rotatable around a rotation axis 35 that connects the one end and the other end.SELECTED DRAWING: Figure 1【課題】放射線源を移動させて撮影を行うマンモグラフィ装置において被検者を保護する保護部材を設ける場合に、装置が大型化するのを抑制することができるマンモグラフィ装置を提供する。【解決手段】マンモグラフィ装置１０は、被検者の乳房に放射線を照射する放射線源２９と、放射線源２９を軸２３を中心として回転可能に支持し、乳房への放射線の入射角度が互いに異なる複数の撮影位置に放射線源２９を移動する支持部２２と、放射線源２９から照射される放射線から被検者を保護するフェイスガード３２と、一端がフェイスガード３２に回転可能に連結され、他端が放射線源２９の回転に対して静止状態を維持する保持部１８に回転可能に連結され、一端と他端との間に屈曲部３７を有し、一端と他端とを結ぶ回転軸３５を中心として回転可能な少なくとも一対のアーム３６と、を備える。【選択図】図１
