Transmission and Capture Measurements for 241Am at GELINA

P. Schillebeeckx, C. Lampoudis, S. Kopecky, A. Plompen, P. Siegler, F. Gunsing, C. Sage and O. Bouland

J. Korean Phys.Soc. 59,1785 [doi: 10.3938/jkps.59.1785 | PDF Download]

The precise knowledge of cross sections for neutron induced reactions of major and minor actinides is essential for the design of advanced reactors. Furthermore, the present evaluated data files disagree with the results of some recent measurements. Therefore it was decided to perform new transmission and capture measurements for 241Am at GELINA aiming to improve the evaluations. For the measurements a novel sample preparation method has been employed, for ensuring the homogeneity of the samples. The first results of capture and transmission measurements are consistent with each other, and with recent experimental values, but seem to be inconsistent with the evaluated data files. Before the final results can be reported, a careful characterisation of the americium sample is required.