CROSS-EVALUATION OF HIGHLY ENRICHED METAL URANIUM FAST CRITICALITY EXPERIMENTS Fan Kai, Li Fu, Wang Jiangmeng, Yin Yanpeng, Song Lingli, Wang Sanbing and Xie Qilin EPJ Web Conf., 247 (2021) 17006 Published online: 22 February 2021 DOI: 10.1051/epjconf/202124717006