Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN

E Mendoza,D Canoott,C Guerrero,E Berthoumieux,U Abbondanno,G Aerts,F Alvarezvelarde,S Andriamonje,J Andrzejewski, P Assimakopoulos,L Audouin,G Badurek,J Balibrea,P Baumann,F Becvar,F Belloni,F Calvino,M Calviani,R Capote,C Carrapico,A Carrillo De Albornoz,P Cennini,V Chepel,E Chiaveri, N Colonna,G Cortes,A Couture,J Cox, M Dahlfors,S David,I Dillmann,R Dolfini,C Domingopardo,W Dridi,I Duran,C Eleftheriadis, L Ferrant,A Ferrari,R Ferreiramarques,L Fitzpatrick, H Fraiskoelbl,Kensaku Fujii,W Furman,I Goncalves,E Gonzalezromero,A Goverdovski,F Gramegna,E Griesmayer,F Gunsing,B Haas, R C Haight,M Heil, A Herreramartinez,Masayuki Igashira, S Isaev,E Jericha,F Kappeler,Y Kadi, D Karadimos, D Karamanis, V Ketlerov,M Kerveno,P Koehler, V Konovalov,E Kossionides,M Krticka, C Lampoudis,H Leeb,A Lindote,I Lopes, R Lossito,M Lozano,S Lukic,J Marganiec,Luciana Pacheco Marques,S Marrone,T Martinez,C Massimi, P Mastinu,A Mengoni,P M Milazzo,C Moreau,M Mosconi,F Neves,H Oberhummer, S O Brien,M Oshima,J Pancin,C Papachristodoulou,C Papadopoulos,C Paradela,N Patronis,A Pavlik,P Pavlopoulos,L Perrot,M T Pigni,R Plag,A Plompen

Physical Review C（2018）

引用 37|浏览43

暂无评分

摘要

Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the Am-243(n, gamma) cross section uncertainty. Method: The Am-243(n, gamma) cross section has been measured at the n_TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The Am-243(n, gamma) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the Am-243(n, gamma) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要