Energia i regulacje · 10.03.2021
Fresh and Spent Fuel Pool Criticality Analyses
The U.S. Nuclear Regulatory Commission (NRC) is issuing a new Regulatory Guide (RG) 1.240, "Fresh and Spent Fuel Pool Criticality Analyses." This regulatory guide (RG) describes an approach that the staff of the U.S. Nuclear Regulatory Commission (NRC) considers acceptable to demonstrate that NRC regulatory requirements are met for subcriticality of fuel assemblies stored in fresh fuel vaults and spent fuel pools at light-water reactor (LWR) power plants. It endorses, with clarifications and exceptions, the Nuclear Energy Institute (NEI) guidance document NEI 12 16, "Guidance for Performing Criticality Analyses of Fuel Storage at Light Water Reactor Power Plants," Revision 4.