Effective temperatures and scattering cross sections in water mixtures determined by Deep Inelastic Neutron Scattering
Lundi 7 décembre 2015 14:00
- Duree : 1 heure
Lieu : EPN Campus, ILL 4, Seminar Room (no 163), 71 avenue des Martyrs - Grenoble
Orateur : Javier DAWIDOWSKI (Comisión Nacional de Energía Atómica (CNEA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
Centro Atómico Bariloche, Argentina)
In this talk I will show a series of results of Deep Inelastic Neutron Scattering (DINS) experiments on light and heavy water mixtures performed at the spectrometer VESUVIO (Rutherford Appleton Laboratory, UK) employing an analysis method based on the information provided by individual detectors in forward and backward scattering positions. We investigated the effective temperatures of the different atoms composing the samples, a magnitude of considerable interest for Nuclear Engineering. The peak intensities and their relation with the bound-atom cross sections is analyzed, showing a good agreement with tabulated values which supports the use of this technique as non-destructive mass spectrometry.
I will comment on previous results in the determination of scattering cross sections by this technique that arose a long-lasting controversy.
Contact : dubouloz@ill.fr
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