Title: Evaluation of the 103Rh Neutron Cross-Section Data in the Unresolved Resonance Region for Improved Criticality Safety
Authors: MIHAILESCU LiviuSIRAKOV IvanCAPOTE R.BORELLA AlessandroGUBER K. H.KOPECKY StefanLEAL L. C.SCHILLEBEECKX PeterSIEGLER PeterSOUKHOVITSKII E.WYNANTS Ruud
Citation: Proceedings of the ND 2007 International Conference on Nuclear Data for Science and Technology vol. 1 p. 649-652
Publisher: EDP Sciences
Publication Year: 2008
JRC Publication N°: JRC47307
URI: http://nd2007.edpsciences.org/
http://publications.jrc.ec.europa.eu/repository/handle/JRC47307
DOI: 10.1051/ndata:07617
Type: Contributions to Conferences
Abstract: New capture and transmission measurements have been performed at GELINA to improve the neutron induced cross-section data for 103Rh in the resonance region. This contribution refers to the evaluation of the neutron cross-section data of 103Rh in the unresolved resonance region. The capture measurements were done at a 30m measurement station using C6D6 detectors and applying the total energy detection principle in combination with the pulse height weighting technique. The transmission measurements were performed at a 50m station using 6Li-glass scintillators as neutron detectors. The experimental data have been processed with the AGS code, which includes a full propagation of both correlated and uncorrelated uncertainties. The experimental data are interpreted in terms of average resonance parameters using a generalized single level representation. A link to a dispersive coupled-channel optical model is used for information about the energy dependence of the distant level parameters and the neutron strength functions. This link becomes especially valuable when a dispersive potential as the one derived here is employed after being optimized in a wide energy region. Thus, the consistency between the resonance and the high energy region is ensured.
JRC Institute:Institute for Reference Materials and Measurements

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