| Zugriffsnummer | 45686 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Measurement of the angular distribution of neutrons scattered from deuterium below 3 MeV |
| Autor(in); Institution |
Pirovano, Elisa; 6.4, Neutronenstrahlung, PTB-Braunschweig
Nolte, Ralf; 6.4, Neutronenstrahlung, PTB-Braunschweig
Nyman, M.; European Commission, Joint Research Centre, Geel, BELGIUM
Plompen, A.; European Commission, Joint Research Centre, Geel, BELGIUM
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| Quelle/Jahr | EPJ Web of Conferences: 239 (2020), 1 - 4 |
| Artikelnummer | 01016 |
| Availability | [online only] |
| ISSN | 2100-014X |
| DOI | |
| Verlag | Les-Ulis: EDP Sciences |
| Konferenzangaben | International Conference On Nuclear Data for Science and Technology, Beijing, 19-24, May, 2019, Japan |
| Zusammenfassung | Accurate experimental data describing the angular distribution of neutron elastic scattering on deuterium are of interest for both fundamental research, for understanding quantum-mechanical few-body systems, and nuclear applications, e.g. for metrology, detector development, and reactor engineering. Below 3 MeV of incident energy, however, the available measurements are scarce and partially inconsistent. The data in the evaluated nuclear libraries have been found to cause inconsistencies when trying to reproduce heavy-water moderated criticality benchmarks, and the re-evaluation of the angular distribution below 1 MeV figures on the High Priority Request List for nuclear data maintained by the OECD/NEA. A new measurement of the differential cross section of n-d scattering was therefore carried out. Monoenergetic neutrons in the energy range from 400 keV to 2.5 MeV were employed to irradiate a proportional counter filled with mixtures of deuterated gases, which served as both neutron target and detector for the recoil deuterons. As the deuteron recoil energy is directly related to the neutron scattering angle, the experimantal pulse-height was analysed to reconstruct the neutron angular distributions over a lage angular range. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Ionisierende Strahlung |