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Novel method to study neutron capture of U 235 and U 238 simultaneously at keV energies

Wallner, Anton; Belgya, T.; Bichler, Max; Buczak, K; Dillmann, I; Kappeler, F; Lederer, C; Mengoni, A.; Quinto, F.; Steier, P; Szentmiklosi, L


The neutron capture cross sections of the main uranium isotopes, U235 and U238, were measured simultaneously for keV energies, for the first time by combining activation technique and atom counting of the reaction products using accelerator mass spectrometry. New data, with a precision of 3%-5%, were obtained from mg-sized natural uranium samples for neutron energies with an equivalent Maxwell-Boltzmann distribution of kT∼25keV and for a broad energy distribution peaking at 426 keV. The...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.112.192501
Access Rights: Open Access


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