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NRC approves overhaul of FOF inspections, baseline security programs
The security drills held at commercial nuclear power plants as part of the Force-on-Force (FOF) inspection program will no longer be led by the Nuclear Regulatory Commission.
The commissioners on Friday approved recommendations presented earlier in the year by NRC staff to significantly overhaul the security program. This includes phasing out NRC-led drills by 2028. Following the phaseout, drills will be led by the licensee, with the NRC observing.
R. W. Hardie, R. E. Schenter, R. E. Wilson
Nuclear Science and Engineering | Volume 57 | Number 3 | July 1975 | Pages 222-238
Technical Note | doi.org/10.13182/NSE75-A26754
Articles are hosted by Taylor and Francis Online.
Measured integral quantities such as keff, central reaction-rate ratios, and central reactivity coefficients for 18 fast critical assemblies were calculated using the ENDF/B-IV neutron cross-section set. The correlations between calculation and experiment using Version IV were then compared to those obtained with earlier cross-section data, specifically, Versions I, II, and III of ENDF/B and the Bondarenko cross-section set. In general, ENDF/B-IV was found to do an excellent job of calculating keff. However, discrepancies between calculation and experiment did exist for both reaction-rate ratios and reactivity coefficients. Of particular interest, the fissile-fuel central-worth discrepancy for plutonium assemblies was found to be ∼20%.
