| 摘要 |
PROBLEM TO BE SOLVED: To reliably and uniformly emit light from a light source part to an X-ray radiographic apparatus even when the arrangement of the light source part is restricted by a peripheral component, etc. SOLUTION: A mammography apparatus 10 being the X-ray radiographic apparatus includes: a radiation source 20 for emitting radiation; a solid detector 38 for detecting the radiation transmitting a subject and obtaining radiograph information of the subject; and an erasure light source part 40 having a plurality of top view LEDs 46 for emitting light in a first emission direction directed to the solid detector 38, and arranged to face the solid detector 38. The solid detector 38 and the erasure light source part 40 are arranged in a state where at least the end edge 50a of the erasure light source part 40 is deviated internally from the corresponding end edge 38a of the solid detector 38 and a plurality of side view LEDs 48 for emitting light in a second emission direction directed to an area R1 including the end edge 38a of the solid detector 38 are arranged in a part along the end edge 50a. COPYRIGHT: (C)2009,JPO&INPIT
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