| 摘要 |
<p>In order to prevent image degradation caused by the occurrence of a truncation error and improve the resolution of a tomographic image obtained by reconstruction, a radiation imaging device is provided with: a first detector (21A) which rotates about a rotation axis (16), is equipped with a collimator (26) for limiting the incident direction of radiation (19), and has a detector surface disposed diagonally with respect to the rotation axis (16); a second detector (21B) which rotates about the rotation axis (16) and includes, in an imaging range (22B), a region outside the effective field of view of the first detector (21A); and an image generation means (12) which, on the basis of the radiation (19) which the first detector (21A) and the second detector (21B) have detected while rotating about the rotation axis (16), creates an image of the generation location and density of the radiation.</p> |
