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|Title:||Evaluation of the 103Rh Neutron Cross-Section Data in the Unresolved Resonance Region for Improved Criticality Safety|
|Authors:||MIHAILESCU Liviu; SIRAKOV Ivan; CAPOTE R.; BORELLA Alessandro; GUBER K. H.; KOPECKY Stefan; LEAL L. C.; SCHILLEBEECKX Peter; SIEGLER Peter; SOUKHOVITSKII E.; WYNANTS Ruud|
|Citation:||Proceedings of the ND 2007 International Conference on Nuclear Data for Science and Technology vol. 1 p. 649-652|
|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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