Results 21 to 30 of about 19,300 (340)

Thermal Properties and Behaviour of Am-Bearing Fuel in European Space Radioisotope Power Systems

Thermo, 2021
The European Space Agency is funding the research and development of 241Am-bearing oxide-fuelled radioisotope power systems (RPSs) including radioisotope thermoelectric generators (RTGs) and European Large Heat Sources (ELHSs).
Emily Jane Watkinson, Ramy Mesalam, Jean-François Vigier, Ondřej Beneš, Jean-Christophe Griveau, Eric Colineau, Mark Sierig, Daniel Freis, Richard M. Ambrosi, Dragos Staicu, Rudy J. M. Konings   +10 more
doaj   +1 more source

The Separation of 241Am from Aged Plutonium Dioxide for use in Radioisotope Power Systems

E3S Web of Conferences, 2017
Electrical power sources used in outer planet missions are a key enabling technology for data acquisition and communications. State–of-the-art power sources generate electricity from alpha decay of 238Pu via thermoelectric conversion. However, production
Sarsfield M.J., Campbell C., Carrigan C., Carrott M.J., Colle J-Y., Freis D., Gregson C., Griffiths T., Holt J., Lajarge P., Maher C. J., Manara D., McLuckie B., Mason C., Naji M., Taylor R.J., Tinsley T., Somers J., Stephenson K., Vigier J-F.   +19 more
doaj   +1 more source

Removal of ²⁴¹Am from Aqueous Solutions by Adsorption on Sponge Gourd Biochar

Molecules, 2023
Luffa cylindrica biomass was converted to biochar and the removal of 241Am by pristine and oxidized biochar fibers was investigated in laboratory and environmental water samples. This species has the added advantage of a unique microsponge structure that
Maria Philippou, Ioannis Pashalidis, Dimitrios Kalderis   +2 more
doaj   +1 more source

Efficient americium separation

Communications Engineering, 2022
A chemical strategy to separate troublesome americium from lanthanides could help reduce the radiological hazards of spent nuclear fuel and create opportunities for waste re-processing.
openaire   +2 more sources

Energy resolution of alpha particles in a microbulk Micromegas detector at high pressure Argon and Xenon mixtures [PDF]

, 2009
The latest Micromesh Gas Amplification Structures (Micromegas) are achieving outstanding energy resolution for low energy photons, with values as low as 11% FWHM for the 5.9 keV line of $^{55}$Fe in argon/isobutane mixtures at atmospheric pressure.
A. Tomás, Alkhazov, Avignone, Dolbeau, E. Ferrer-Ribas, F. Iguaz, Giomataris, Giomataris, Giomataris, I. Giomataris, I.G. Irastorza, Knoll, Luscher, Ounalli, P. Salin, Ph. Gorodetzky, T. Dafni   +16 more
core   +3 more sources

The behaviour of Eu, Pu, Am radionuclide at burning radioactive graphite in an oxygen atmosphere. Computer experiments

EPJ Web of Conferences, 2015
Be means of the method of computer thermodynamic simulation we studied the behaviour of the europium, plutonium and americium from the combustion of radioactive graphite in oxygen. Europe is in the form of condensed EuOCl, Eu2O3 and vapour EuO.
Kolbin T.S., Barbin N.M., Terentev D.I., Alekseev S.G.   +3 more
doaj   +1 more source

Microdosimetry of kidney cells exposed to 243Am and X-ray irradiation [PDF]

EPJ Web of Conferences
In vitro experiments with rat kidney cells exposed to 243Am in cell culture medium show a decreasing cell viability with increasing americium concentration.
Kahle Pia, Senwitz Christian, Heller Anne, Seifert Anja, Taut Steffen, Kormoll Thomas   +5 more
doaj   +1 more source

Comparison of radiation hazard of HLW in several spent nuclear fuel reprocessing scenarios

EPJ Web of Conferences, 2012
Radiation hazard of radionuclide has been calculated as a product of Aε where A is an activity of radionuclide and ε is a dose coefficient through ingestion. The values Aε of 18 radionuclide in spent fuel of WWER-440 are calculated.
Gladilov D., Ochkin A., Stefanovsky S.
doaj   +1 more source

Sorption of selected radionuclides from liquid radioactive waste by sorbents of biological origin: The alkaline earth alginates

Nukleonika, 2021
The sorption of 241Am3+, 85Sr2+ and 137Cs+ by calcium, strontium and barium alginates has been studied under different operation conditions. The most prominent adsorption was found in the pH range of 5–6 for all systems, even if the observed dependence ...
Fuks Leon, Oszczak-Nowińska Agata
doaj   +1 more source

Exploratory Research on Radioisotope Thermoelectric Generators for Deep Space Missions

E3S Web of Conferences, 2017
To support the development of a Radioisotope Power Source (RPS) for exploration missions into deep space based on 241Am, the European Commission’s Joint Research Centre (JRC) has recently launched an exploratory research project, scheduled for a period ...
Freis D., Vigier J.F., Popa K., Wiss T., Griveau J.-C., D’Agata E., Somers J.   +6 more
doaj   +1 more source