出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Elastic neutron scattering from 12C, 14N, 16O, 28Si, 40Ca, 56Fe, 89Y and 208Pb has been studied
at 96 MeV in the 10−70 degree interval, using the SCANDAL (SCAttered Nucleon Detection
AssembLy) facility. The results for 12C and 208Pb have recently been published, while the data on
the other nuclei are under analysis. The achieved energy resolution, 3.7 MeV, is about an order
of magnitude better than for any previous experiment above 65 MeV incident energy. A novel
method for normalization of the absolute scale of the cross section has been used. The estimated
normalization uncertainty, 3 %, is unprecedented for a neutron-induced differential cross section
measurement on a nuclear target.
Elastic neutron scattering is of utmost importance for a vast number of applications. Besides its
fundamental importance as a laboratory for tests of isospin dependence in the nucleon-nucleon,
and nucleon-nucleus, interaction, knowledge of the optical potentials derived from elastic scattering
come into play in virtually every application where a detailed understanding of nuclear
processes are important.
Applications for these measurements are nuclear waste incineration, single event upsets in electronics
and fast neutron therapy. The results at light nuclei of medical relevance (12C, 14N and
16O,) are presented separately. In the present contribution, results on the heavier nuclei are presented,
among which several are of profound relevance to accelerator-driven systems for transmutation.
