Results 171 to 180 of about 1,946 (206)
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Trace analysis of 55Fe in biosphere and technology by means of AMS
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1990Abstract Iron is a very important element in the biosphere and in material technology. Labeling and tracing methods in connection with the sensitive AMS method offer therefore a wide field of applications for 55Fe. We have used a TOF system with channel plate detectors and a Bragg ionization chamber which yields Z and E information.
G. Korschinek +5 more
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A Determination of 59Ni and 55Fe Content in NPP Structural Elements
Ukrainian Journal of Physics, 2023The structural materials from the 2nd unit of the Chornobyl NPP were irradiated by bremsstrahlung photons with an end-point energy of 37 MeV. From the measured y-spectra, using the ratios among the 57Co, 54Mn, and 58Co activities, the concentrations of 58Ni and 56Fe isotopes were determined in compare with the concentrations of 59Co. Using the obtained
Zheltonozhsky, V.O. +3 more
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Uncertainties in 63Ni and 55Fe determinations using liquid scintillation counting methods
Applied Radiation and Isotopes, 2012The implementation of (63)Ni and (55)Fe determination methods in an environmental laboratory implies their validation. In this process, the uncertainties related to these methods should be analysed. In this work, the expression of the uncertainty of the results obtained using separation methods followed by liquid scintillation counting is presented ...
M, Herranz +3 more
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J-dependence in the 56Fe(p, d)55Fe reaction
Nuclear Physics, 1966Abstract The dependence of (p, d) angular distributions on the total angular momentum J of the picked-up neutron has been investigated in the 56Fe(p, d)55Fe and the 60Ni(p, d)59Ni reactions with 17.5 MeV protons. The differences in the angular distributions between p 1 2 and p 1 2 neutron pick-up and between f 5 2 and
C.A. Whitten, E. Kashy, J.P. Schiffer
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Half-life and X-ray emission probabilities of 55Fe.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 2000The X-ray emission probabilities of the Mn-K(alpha) and Mn-K(beta) radiation in the decay of 55Fe were measured with a calibrated Si(Li) spectrometer, resulting in 0.245(7) and 0.0338(9), respectively. A half-life of 1003.5(21) day was measured using the same detector.
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Preparation of carrier-free 55Fe and 59Fe by reactor irradiation
The International Journal of Applied Radiation and Isotopes, 1969Abstract Millicurie quantities of carrier-free 55 Fe and 59 Fe were obtained from irradiated cobalt and nickel targets. The fission-neutron cross sections were determined to be 3.30 ± 0.39 mb for the 58 Ni( n , α) 55 Fe reaction, 1.06 ± 0.12 mb for the 59 Co( n, p ) 59 Fe reaction, and 0.111 ± 0.013 mb for the 62 Ni( n , α) 59 Fe reaction based ...
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Radioanalytical determination of 55Fe and 63Ni in the environmental samples
Chemia Analityczna, 2001The radioanalytical procedures for the determination ofneutron activation isotopes (55Fe and 63Ni) in environmental samples (water, sediment, soil and biological material) are described. The procedures are bas.ed on the coprecipitation of 55Fe with ironhydroxide in natural and reactor water, ashing and mineralization ofsediments, soil and biota samples,
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Rapid determination of 55Fe and 89, 90Sr in liqud samples
2003In a last decade significant progress in the methods development for alpha, beta-emitting radionuclide determination was made. This progress is based on the development of new procedures for chemical isolation and separation of specific radionuclides and new generation of liquid scintillation spectrometer, which enables rapid determination of low-level
Grahek, Željko +2 more
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