Results 151 to 160 of about 6,417 (203)

Hole states in 55Fe

Nuclear Physics A, 1972
Abstract A number of low-lying levels in 55 Fe have been described as hole states. The lifetime of the first two hole states has been measured using the direct-timing and Doppler-shift techniques, and the decay scheme of these and neighbouring levels measured.
B.C. Robertson, G.C. Neilson, W.J. McDonald   +2 more
openaire   +1 more source

X-ray Diffraction using 55Fe Sources

Nature Physical Science, 1971
LOBOV et al. have criticized1 our work2 on X-ray diffraction using a 55Fe source and modified Debye–Scherrer geometry. In particular, they have objected to our statement that 55Fe, which is reactor-produced by the (n, γ) reaction as was their source, is contaminated with 59Fe and 54Mn.
LUTHER E. PREUSS, WILLIAM S. TOOTHACKER
openaire   +1 more source

LOSS OF IRON FROM MOUSE PERITONEAL MACROPHAGES IN VITRO AFTER UPTAKE OF [55FE]FERRITIN AND [55FE]FERRITIN RABBIT ANTIFERRITIN COMPLEXES [PDF]

Journal of Cell Biology, 1974
Mouse peritoneal macrophages in culture for 24 h were exposed to horse [55Fe]ferritin and rabbit antihorse [55Fe]ferritin antibody complex and the amount of 55Fe in the medium was assayed up to 2 days after the pulse uptake. Cell survival was assayed by photographing the same areas of the tissue culture Petri dish on successive days and by counting ...
exaly   +3 more sources

Diffusion of 55Fe in Fe2O3 single crystals

Journal of Physics and Chemistry of Solids, 1985
Abstract The diffusion of 55 Fe has been measured parallel to the c axis of Fe 2 O 3 single crystals at temperatures in the range 708–1303°C and at an oxygen activity of unity. The tracer penetration profiles were determined using sectioning techniques. For temperatures above 900°C the tracer diffusion coefficient is given by D ∗ (Fe) = 1.6 × 10
A. Atkinson, R.I. Taylor
openaire   +1 more source

Standardization and half-life measurement of 55Fe

Applied Radiation and Isotopes, 1998
Abstract Methods for measurement of the specific activity and the KX-ray emission rate per 1 g of a 55 Fe solution are described. The emission rate was determined by a pressurized proportional 4 π -counter with an uncertainty of 0.3% and absorption and self-absorption corrections were determined experimentally for each source.
N.I. Karmalitsyn, T.E. Sazonova, A.V. Zanevsky, S.V. Sepman   +3 more
openaire   +1 more source

Визначення вмісту 59Ni та 55Fe в конструкційних елементах АЕС

Ukrainian Journal of Physics, 2023
Проведено опромiнювання конструкцiйних матерiалiв 2-го блока ЧАЕС гальмiвними y-квантами з граничною енергiєю 37 МеВ. З вимiряних y-спектрiв, використовуючи спiввiдношення виходiв 57Co, 58Сo та 54Mn, ми визначили вiдношення концентрацiй iзотопiв 58Ni та 56Fe до концентрацiї 59Co.
V.O. Zheltonozhsky, D.E. Myznikov, A.M. Savrasov, V.I. Slisenko   +3 more
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A direct method for 55Fe activity measurement

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1990
Abstract A simple, direct method for the determination of 55 Fe activity using liquid scintillation counting is described. The method is based on the theoretical calculation of counting efficiencies and does not make use of efficiency tracing or extrapolation.
B.R. Meyer, B.R.S. Simpson
openaire   +1 more source

Quantitative autoradiographic assessment of 55Fe-RBC distribution in rat brain

Journal of Applied Physiology, 1990
A simple in vivo technique of labeling erythrocytes (RBCs) with 55Fe was developed for quantitative autoradiography (QAR). This procedure involved injecting 5-6 ml of [55Fe]ferrous citrate solution (1 mCi/ml) intraperitoneally into donor rats. The number of labeled RBCs reached a maximum at around 7 days and declined very slowly thereafter.
S Z, Lin, H, Nakata, A, Tajima, K, Gruber, V, Acuff, C, Patlak, J, Fenstermacher   +6 more
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55Fe in Pacific Ocean plankton

Marine Biology, 1977
The specific activity of 55Fe in plankton increased from below detectable limits at 20°N to a maximum of 130 nCi/g Fe at 20°S and then decreased to 5 nCi/g Fe at 50°S. Along an east-west track near 15°S a peak of 90 nCi/g Fe occurred at 135°W. It is suggested that this maximum is the result of fallout from French nuclear tests at Mururoa Atoll (22°S ...
openaire   +1 more source

TDCR measurements to determine the half-life of 55Fe

Applied Radiation and Isotopes, 2020
Several measurements with aliquots from a 55Fe solution were carried out using two custom-built TDCR counters. The time between the initial and the last measurements is 2304 d, i.e. a length of more than two half-lives. The data were analysed to determine the half-life of 55Fe, which was found to be (1006.2 ± 1.0) d.
openaire   +2 more sources