| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radiation shield convenient as an auxiliary tool when the radiation dose of a relatively narrow part is measured while a detection section of a portable radiation meter is shielded.SOLUTION: A portable radiation shield (shield tray) 100 is used in combination with a cylindrical shield body 2. A disk-shaped body 102 of the shield tray 100 has a rectangular opening 106 having a shape notched in the radial direction, and can define the width of a slit SL of a radiation passage window with a slide type door 108 disposed in the opening. The shield tray 100 is placed at a position facing a joint or crack Op of a road, and the cylindrical shield body 2 into which a probe P is inserted is mounted, and the radiation dose is measured.</p> |
