0000000001082809

AUTHOR

P. Warnicke

showing 1 related works from this author

Quantitative analysis of rhenium in irradiated tungsten

2021

Abstract Pure tungsten (W), irradiated to 3.5 dpa in a target of the Swiss neutron spallation source (SINQ), was characterized using high-sensitivity HPGe gamma ray spectroscopy to identify the present radionuclides. Synchrotron X-ray absorption spectroscopy was used to quantify the amount of Re produced in the irradiated W. An atomic concentration of 0.61% Re in the irradiated W was determined from the height of the L3-edge X-ray absorption edge jump. Analysis of the local atomic structure from the extended X-ray absorption fine structure (EXAFS) spectra indicates that rhenium (Re) produced in the system is mainly coordinated by W atoms and partly coordinated by void defects. First-princip…

Nuclear and High Energy PhysicsMaterials scienceExtended X-ray absorption fine structureAbsorption spectroscopyAstrophysics::High Energy Astrophysical PhenomenaAnalytical chemistrychemistry.chemical_element02 engineering and technologyRheniumTungsten021001 nanoscience & nanotechnology01 natural sciences010305 fluids & plasmasNuclear Energy and EngineeringchemistryAbsorption edge0103 physical sciencesGeneral Materials ScienceSpallationGamma spectroscopy0210 nano-technologyAbsorption (electromagnetic radiation)Journal of Nuclear Materials
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