Am-Pu (Americium-Plutonium)
نویسندگان
چکیده
منابع مشابه
Relativistic density functional theory modeling of plutonium and americium higher oxide molecules.
The results of electronic structure modeling of plutonium and americium higher oxide molecules (actinide oxidation states VI through VIII) by two-component relativistic density functional theory are presented. Ground-state equilibrium molecular structures, main features of charge distributions, and energetics of AnO3, AnO4, An2On (An=Pu, Am), and PuAmOn, n = 6-8, are determined. In all cases, m...
متن کاملPlutonium and Americium in the Cephalopod Octopus vulgaris
Radiotracer experiments using the photon-emitters 2 3 7 ~ and 2 4 1 ~ m were performed to examine uptake, tissue distribution and retention of plutonium and americium in the cephalopod Octopus vulgaris Cuvier. A 2 wk exposure in contaminated sea water resulted in twice as much 2 3 7 P ~ being taken up by whole octopus as 2 4 1 ~ m . Immediately following uptake approximately 41 % and 73 % of th...
متن کاملPlutonium isotopes 238 Pu , 239 + 240 Pu and 241 Pu in the Baltic Sea ecosystem
Wet and dry atmospheric fallout from nuclear weapon tests is one of the most important sources of plutonium in the Baltic Sea. The other sources: plutonium releases from spent fuel facilities in Sellafield (UK) and Cap de la Hague (France) are less important. Since 26 April 1986 it has been a new source of plutonium – Chernobyl plutonium, which should be taken under note in estimation of its ra...
متن کاملTransfer of plutonium, americium and curium from fallout into reindeer after the Chernobyl accident
Several reindeer tissue samples were analysed for transuranium elements following the Chernobyl accident in 1986. Pu, Am and Cm were separated using coprecipitation and anion exchange steps, and measured with alpha spectrometry. The activity concentrations of Pu in reindeer liver found in this study (0.0094–0.062 Bq kg d.w. [= dry weight]) are low compared to the concentrations found in the 196...
متن کاملAm-241 as a Metabolic Tracer for Inhaled Pu Nitrate in External Chest Counting
INTRODUCTION The most difficult radionuclides to measure accurately by external chest counting are the isotopes of plutonium. They are detected through weak emission of low energy L X-rays; in the case of Pu, 11-20 keV L X-rays are emitted with the total emission rate of 0.042 per disintegration. These photons are severely attenuated by overlying tissue; typically about 0.1 % of the photons, th...
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ژورنال
عنوان ژورنال: Journal of Phase Equilibria and Diffusion
سال: 2011
ISSN: 1547-7037,1863-7345
DOI: 10.1007/s11669-011-9957-z