| 摘要 |
PURPOSE:To provide a radiation absorption mask capable of easily forming concave parts in the mask corresponding to the location where radiation absorptivity should be corrected according to the surface shape of a body to be inspected, easily changing the formed shape and properly correcting the radiation penetration dose according to the welded parts with different plate thickness between left and right. CONSTITUTION:In a radiation absorption mask 1 constituted by laminating a plurality of thin plates 2 having radiation absorptivity, a concave part corresponding to a radiation penetration dose correction location for a body A to be inspected is formed at the end of the thin plates 2 pluraly layered. |
