| 摘要 |
PROBLEM TO BE SOLVED: To provide a radioactivity inspection device capable of correctly detecting a radiation without being affected by a background radiation, etc.SOLUTION: A first radiation detector 7 for detecting a radiation to be emitted from a rice bag R is placed at a position above a conveyor 4 inside a device body 1. A first radiation shielding member 5 constituted by lead having a radiation shielding effect and having a shape to enclose an area other than the lower side area of the first radiation detector 7 is disposed in the circumference of the first radiation detector 7. A second radiation detector 8 for detecting a radiation to be emitted from the rice bag R is disposed at a position under the conveyor 4 inside the device body 1. A second radiation shielding member 6 constituted by lead having a radiation shielding effect and having a shape to enclose an area other than the upper side area of the second radiation detector 8 is disposed in the circumference of the second radiation detector 8. |
