PROBLEM TO BE SOLVED: To estimate scattered radiation while suppressing a reduction in precision with a small amount of calculation in a short calculation time.SOLUTION: A radiographic apparatus according to the invention includes: generation means for generating an image of a subject on the basis of detection data on radiation emitted to the subject incident position determining means for determining the incident position of scattered part of the radiation relative to the detection position of the radiation scattering position determining means for determining the scattering position of the radiation on the line of penetration of the radiation going through the subject physical property determining means for determining the physical properties of the subject related to attenuation and scattering of the radiation estimation means for estimating the scattered dose of the radiation incident from the scattering position to the incident position on the basis of the physical properties and scattered radiation removing means for removing the scattered radiation from the detection data.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】 少ない計算量且つ短い計算時間で、精度劣化を抑制しながら散乱線を推定することができる。【解決手段】 本発明に係る放射線撮影装置は、被検体に照射された放射線の検出データに基づいて、前記被検体の画像を生成する生成手段と、前記放射線の検出位置に対して、前記放射線の散乱線の入射位置を決定する入射位置決定手段と、前記被検体を透過する前記放射線の透過線上に、前記放射線の散乱位置を決定する散乱位置決定手段と、前記放射線の減弱及び散乱に関する前記被検体の物性値を決定する物性値決定手段と、前記物性値に基づいて、前記散乱位置から前記入射位置に入射する前記放射線の散乱線量を推定する推定手段と、前記検出データから前記散乱線を除去する散乱線除去手段とを備える。【選択図】 図1
