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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
J. B. Garg
Nuclear Science and Engineering | Volume 65 | Number 1 | January 1978 | Pages 76-92
Technical Paper | doi.org/10.13182/NSE78-A27128
Articles are hosted by Taylor and Francis Online.
High-resolution total neutron cross-section measurements in natural vanadium. manganese, and cobalt were made in the energy range up to a few hundred keV with the Columbia University Nevis neutron velocity spectrometer using a 200-m flight path and a nominal resolution of 0.5 ns/m. These cross-section data were analyzed with an R-matrix multilevel code, and the resonance parameters (Eλ, Γπ. S0, ⟨D⟩) were obtained. In addition, making use of the published thermal energy data, the parameters of the bound levels were determined. From these measurements the values of S0 up to 215-keV neutron energy for vanadium [ = 8.62 ± 2.45, = 8.79 ± 2.50, and = 8.7 ± 1.81; up to 200 keV for manganese [ = 3.10 ± 0.70, = 4.75 ± 1.10, and = 3.93 ± 0.651, and up to 80 keV for cobalt [ = 4.02 ± 0.96, = 2.94 ± 0.75. and = 3.48 ± 0.65 in units of 10−4 eV−1/2] have been obtained. The corresponding mean level spacings up to 215 keV for vanadium are = 8.7 ± 1.25 keV and = 8.33 ± 1.25 keV, up to 100 keV for manganese are = 3.85 ± 0.55 keV and = 4.00 ± 0.59 keV, and up to 80 keV for cobalt are = 2.29 ± 0.28 keV and = 2.67 ± 0.36 keV. The value of spin cut-off factor a is found to vary from 2.7 to 4 for these nuclei. These results do not show any J dependence on the strength function.
