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NRC’s Inspector General issues report
Overall findings of a survey of Nuclear Regulatory Commission personnel indicate that while the NRC maintains a few strengths compared to external benchmarks, results have declined since 2015 in a number of areas, according to a recent report from the NRC’s Office of the Inspector General (OIG).
The survey was conducted in February 2020 by Willis Towers Watson, a global risk-management, insurance brokerage, and advisory firm that has partnered with the OIG for more than 20 years to assess the NRC’s safety culture and climate, as well as other aspects of employee experience.
Hiroshi Maekawa, Yukio Oyama, Tomoo Suzuki, Yujiro Ikeda, Tomoo Nakamura
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 1165-1170
Neutronics and Shielding | dx.doi.org/10.13182/FST83-A23016
Articles are hosted by Taylor and Francis Online.
Angle-dependent neutron leakage spectra above 0.5 MeV from Li2O slab assemblies were measured accurately by the time-of-flight method. The measured angles were 0°, 12.2°, 24.9°, 41.8° and 66.8°. The sizes of Li2O assemblies were 31.4 em in equivalent radius and 5.06, 20.24 and 40.48 em in thickness. The data were analyzed by a new transport code “BERMUDA-2DN”. Time-independent transport equation is solved for two-dimensional, cylindrical, multi-regional geometry using the direct integration method in a multi-group model. The group transfer kernels are accurately obtained from the double-differential cross section data without using Legendre expansion. The results were compared absolutely. While there exist discrepancies partially, the calculational spectra agree well with the experimental ones as a whole. The BERMUDA code was demonstrated to be useful for the analyses of the fusion neutronics and shielding.
