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Anna Bradford to lead NRC Office of Nuclear Reactor Regulation
Anna Bradford has been named the new head of the Nuclear Regulatory Commission’s Office of Nuclear Reactor Regulation. NRC Chair Ho Nieh called Bradford “a superb candidate to lead the team that oversees the safety of our nuclear reactor operating fleet. We are eager to have someone of her experience both here and abroad back at the NRC.” Her appointment will become effective in May.
R. E. Maerker, F. J. Muckenthaler
Nuclear Science and Engineering | Volume 42 | Number 3 | December 1970 | Pages 335-351
Technical Paper | doi.org/10.13182/NSE70-A21222
Articles are hosted by Taylor and Francis Online.
Measurements have been made at the Tower Shielding Facility of the spectra of secondary gamma rays arising from fast-neutron interactions in samples of natural iron, aluminum, copper, zinc, titanium, potassium, calcium, sodium, silicon, nickel, barium, sulfur, and a type-321 stainless steel. The absolute spectra are expressed as values of (Δ Eγ) = 4π d/dΩ (ΔEγ, 90 deg), where (ΔEγ) is the production cross section in millibarns averaged over an incident neutron spectrum from 1 to 14 MeV for 0.5-MeV wide gamma-ray intervals lying between approximately 1 and 6.5 MeV in gamma-ray energy. These data are intended primarily as integral checks on existing and future production cross-section sets which are differential in both the gamma-ray and neutron energy. Agreement with existing sets of data is adequate for iron, nickel, chromium, calcium, and aluminum. The agreement is fair to poor for the remaining elements where comparisons could be made.