Neutron shielding structure of spent fuel storage tank

The utility model relates to the technical field of radiation protection, in particular to a neutron shielding structure of a spent fuel storage tank, which comprises a composite layer a and a composite layer b, the composite layer b is sleeved outside the composite layer a, and a connecting layer is arranged between the composite layer a and the composite layer b. By arranging the composite layer a and the composite layer b and connecting the composite layer a and the composite layer b through the connecting layer, compared with the prior art, the device is simpler in structure and simpler in assembly process. 本实用新型涉及辐射防护技术领域，尤其涉及一种乏燃料贮存罐的中子屏蔽结构，包括复合层a和复合层b，所述复合层b套设于所述复合层a外，所述复合层a与所述复合层b之间还设有连接层。本实用新型通过设置复合层a和复合层b，并通过连接层将复合层a和复合层b进行连接，该装置结构相对于现有技术而言更加简明，装配过程更加简易。