Results 161 to 170 of about 6,417 (203)
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A Critical Review of 55Fe Dosimetric Models
Health Physics, 1995The available literature on 55Fe dosimetry has been devoted to environmental exposures and medical iron kinetic studies. For occupational dosimetry, ICRP (1979, 1988) published a non-recycling dosimetric model for iron. These ICRP publications do not provide information on iron excretion. Johnson and Dunford (1985) published dose conversion factors and
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Nuclear Physics A, 1984
Abstract The reaction 55 Mn(p, nγ) 55 Fe has been studied at E p = 4.0 and 6.0 MeV using a pulsed beam. From the experiments at 6.0 MeV, the energy levels of 55 Fe up to an excitation of 3810 keV, their decay scheme and the γ-ray branching ratios have been determined. Levels have been identified for the first time in the (p, nγ) reaction.
M. Khaliquzzaman +7 more
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Abstract The reaction 55 Mn(p, nγ) 55 Fe has been studied at E p = 4.0 and 6.0 MeV using a pulsed beam. From the experiments at 6.0 MeV, the energy levels of 55 Fe up to an excitation of 3810 keV, their decay scheme and the γ-ray branching ratios have been determined. Levels have been identified for the first time in the (p, nγ) reaction.
M. Khaliquzzaman +7 more
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Determination of 55Fe in urine by liquid scintillation counting
Journal of Radioanalytical and Nuclear Chemistry, 2015A new method has been developed to measure Iron-55 (55Fe) in urine samples, which could be used for dose assessment of 55Fe in an accidental exposure. 55Fe was effectively precipitated from 1 litre of urine by bringing the sample to 2M NaOH. Potential interferences for 55Fe (e.g., Cr, Co, Ni, Mn, Zn and Mo) were removed by anion exchange chromatography.
Nicolas Guérin, Xiongxin Dai
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Uptake of ionic 55Fe by mouse peritoneal macrophages in vitro
Experimental Cell Research, 1975Abstract Mouse peritoneal macrophages were maintained in vitro up to 3 days and exposed to radiolabelled 55 Fe in the form of ferrous citrate, ferrous sulfate, and ferric chloride in concentrations of 3–5 γ Fe/ml. The divalent iron compounds were taken up 10–40 times more extensively per weight of iron than the trivalent iron compounds.
M E, Fedorko, C, Lanni
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The production of 55Fe with medium-energy protons
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1992Abstract Thick-target production rates of 55Fe produced in the proton bombardment of Mn, Co and Ni were investigated from threshold up to 100 MeV. Impurity levels of the only radiocontaminant of importance, 59Fe, were also considered. It is shown that the optimum production rate at energies above ∼ 35 MeV will be achieved by utilizing a tandem Mn/Ni ...
G.F. Steyn +3 more
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Određivanje 55Fe iz uzorka vode
2003Radom nuklearnih postrojenja nastaje niz radioizotopa bilo fisijskog ili aktivacijskog porijekla. Među tim izotopima je i 55Fe koji je aktivacijski produkt reakcije 54Fe(n, gama)55Fe. Taj izotop (izotop s niskom energijom) spada u treću skupinu radiotoksičnosti, a ako uđe u većim količinama u organizam može postati štetan za zdravlje (sastavni dio ...
Lulić, Stipe +2 more
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Biodistribution of55Fe (II) phthalocyanine tetrasulphonate (55Fe (II)-TsPc)
Lasers in Medical Science, 1990Phthalocyanines may be an alternative group of macrocycles applicable for use in photodynamic therapy (PDT) of cancer. Although as a class, phthalocyanines localize in tumours, efficacy of cytotoxicity appears to depend to some degree on the specific compound.
Marc Eckhauser +6 more
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Effects of 55Fe impurities on activity standardization of 59Fe
The International Journal of Applied Radiation and Isotopes, 1985Abstract During activity standardization of 59Fe by 4πβ−γ coincidence counting and efficiency extrapolation it was noted that at high counting efficiencies (when (1−e β )/e β ⪝ 0.09 from measurements of coincidences between s-rays and 1291 keV γ rays) 55Fe contamination shows up as a sudden change in the slope of the efficiency ...
Hiroshi Miyahara, Tamaki Watanabe
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Decay energy of 55Fe from its inner bremsstrahlung spectrum
Pramana, 2001Several measurements of decay energy using the inner Bremsstrahlung spectrum (IB) due to radiative electron capture in 55Fe has been made. But the results are not uniform. Hence another attempt has been made at the same. Experimental data was obtained with a 4.445 cm. dia × 5.08 cm thick Nal (Tl) detector.
S L Keshava, K Gopala, P Venkataramaiah
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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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