Optimized mix proportion design for radiation-shielding concrete using particle swarm optimization: a case study on fast neutron and gamma shielding. - Li, Haoxuan; Qin, Fengdi; Fan, Zhongkai; Yang, Hui; Deng, Tianyu; Cai, Xiangming; Zeng, Xuwei; Li, Hongliang; Shan, Jian (Journal of Radioanalytical & Nuclear Chemistry, 2025)