Results 151 to 160 of about 2,942 (197)
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New isotopes of cobalt; Activation cross-sections of nickel, cobalt, and zinc for 14.8 MeV neutrons
Nuclear Physics (journal), 1960Absolute neutron activation cross-sections at 14.8 Mev were measured for the five stable nickel isotopes, for cobalt, and for zinc, based on comparison with the Cu/sup 63/(n,2n)Cu/sup 62/ reaction (556 mb), the Cu/sup 65/(n,2n)Cu/sup 64/ cross-section (1000 mb), and the Al/sup 27/(n, alpha )Na/sup 24/ reaction (115 mb).
I L Preiss, R W Fink
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The Isotopes of Cobalt and Their Radioactivity
Physical Review, 1936Walker Bleakney
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A Study of the Isotopes of Cobalt by the Magneto-optic Method
Journal of the American Chemical Society, 1933T. R. Ball, Stancil S. Cooper
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Isotopic exchange in the cobaltous-cobaltic system in perchloric acid
Journal of Inorganic and Nuclear Chemistry, 1962Systematic investigations are reported on the isotopic exchange in the cobaltous-cobaltic system using cobalt-60. Ammonia and ethylenediamine were found to be satisfactory quenchers of this fast exchange, even though some zero-time exchange was observed.
J. Shankar, B.C. de Souza
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Nuclear alignment in isotopes of cobalt
Physica, 1952Synopsis A significant anisotropy of γ radiation from aligned Co 60 nuclei has been detected. From the variation of the anisotropy with temperature a value for the magnetic moment can be determined: this is 3.5 ± 0.5 nuclear magnetons and is consistent with the Schmidt limit of 3.8 based on nuclear shell model assignments. Similar investigation of Co
M.A. Grace, H. Halban
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Determination of Small Amounts of Cobalt Using Isotope-Dilution with Cobalt-60
Analytical Chemistry, 1961Trace amounts of cobalt are determined in vitamin B/sub 12/ and biological materials by an isotope-dilution technique combined with a spectrophotometric method. Interference due to copper is overcome by reduction with metallic iron. The procedure employs Co/sup 60/ as the tracer. (auth)
J. T. Byrne, G. A. Rost
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Isotope effect and self-diffusion in face-centred cubic cobalt
Physica Status Solidi (a), 1979Self-diffusion in cobalt is investigated from 896 to 1745 K by means of the standard radio-tracer method using lathe sectioning in the paramagnetic and sputter sectioning in the ferromagnetic region. The diffusion coefficients vary between about 10−17 cm2 s−1 and 10−9 cm2 s−1; their temperature dependence can be described by DT = 0.55 exp (−2.99 eV/kT)
W. Bussmann +4 more
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A Novel Technique to Determine Cobalt Exchangeability in Soils Using Isotope Dilution
Environmental Science & Technology, 2007The environmental risk posed by Co contamination is largely a function of its oxidation state. Our objective was to assess the potential biological availability of Co and the reactions and fate of soluble Co(II) after addition to soils with varying physical and chemical characteristics.
Wendling, Laura A. +2 more
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