Results 131 to 140 of about 1,186 (154)

Određivanje 55Fe iz uzorka vode

2003
Radom 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, Mikelić, Luka, Rožmarić Mačefat, Martina   +2 more
openaire   +2 more sources

Biodistribution of55Fe (II) phthalocyanine tetrasulphonate (55Fe (II)-TsPc)

Lasers in Medical Science, 1990
Phthalocyanines 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, A. Bonaminio, J. Persky, S. Kendrick, A. Imbembo, B. Simic-Glavaski, K. Koehler   +6 more
openaire   +1 more source

Effects of 55Fe impurities on activity standardization of 59Fe

The International Journal of Applied Radiation and Isotopes, 1985
Abstract 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
openaire   +1 more source

Decay energy of 55Fe from its inner bremsstrahlung spectrum

Pramana, 2001
Several 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
openaire   +1 more source

J-dependence in the 56Fe(p, d)55Fe reaction

Nuclear Physics, 1966
Abstract 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
openaire   +1 more source

Gamma rays from the reaction 55Mn(p, nγ)55Fe

Nuclear Physics A, 1967
Abstract The 510 and 680 keV levels in 55Fe reported by Kim do not seem to be generated in the 55Mn(p, nγ)55Fe reaction to intensities higher than 8% and 4% of the 413 keV level. The measurements were done by observing the direct gamma radiations with a lithium-drifted, germanium detector with incident protons of energy 1.80–3.50 MeV.
K.V.K. Iyengar, B. Lal, S.K. Gupta
openaire   +1 more source

Determination of 55Fe in urine by liquid scintillation counting

Journal of Radioanalytical and Nuclear Chemistry, 2015
A 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
openaire   +1 more source

The K auger spectrum of manganese from 55Fe decay

Journal of Electron Spectroscopy and Related Phenomena, 1990
Abstract The complete K Auger spectrum of manganese was analysed at the instrumental resolution of 7 eV. The satellite structure of the KL 2 L 3 ( 1 D 2 ) line (probably due to the shake-up/shake-off processes) was observed at the resolution of 2.2 eV.
A. Kovalík, V. Brabec, J. Novák, O. Dragoun, V.M. Gorozhankin, A.F. Novgorodov, Ts. Vylov   +6 more
openaire   +1 more source

Uncertainties in 63Ni and 55Fe determinations using liquid scintillation counting methods

Applied Radiation and Isotopes, 2012
The 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, R, Idoeta, A, Abelairas, F, Legarda   +3 more
openaire   +2 more sources

Activity measurement of 55Fe by an efficiency calculation method

Applied Radiation and Isotopes, 1998
Abstract A non-extrapolation method for 55Fe activity measurement based on liquid scintillation coincidence counting, is described. The figure-of-merit, P, describing the counting system is established by tracing internally with the γ-emitting radionuclide 54Mn, from which the detection efficiency corresponding to 55Fe is calculated. The technique is
B.R.S. Simpson, B.R. Meyer
openaire   +1 more source