| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation shield wall capable of being installed with ease and effectively shielding γ ray, neutron ray and other radiation rays according to the purpose.SOLUTION: The radiation shield wall is constructed with a pile of dry gypsum blocks formed with radiation shield material composition including water and gypsum. The gypsum is favorably α gypsum, and when viewing the wall from the front, a mating face of the dry gypsum blocks is favorably not a straight surface from a front side to a reverse side of the wall. |
