Elastic Neutron Scattering at 96 MeV

Journal Article · Tue May 24 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1945140· OSTI ID:20722697

Hildebrand, A; Blomgren, J; Atac, A; Bergenwall, B; Johansson, C; Klug, J; Mermod, P; Nilsson, L; Pomp, S; Esterlund, M ^[1]; Dangtip, S; Tippawan, U ^[1]; Phansuke, P ^[2]; Jonsson, O; Renberg, P -U; Prokofiev, A ^[3]; Nadel-Turonski, P ^[4]; Elmgren, K; Olsson, N ^[5]; Blideanu, V ^[6]

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1. Department of Neutron Research, Uppsala University, Box 525, S-75120 Uppsala (Sweden)
2. Fast Neutron Research Facility, Chiang Mai University (Thailand)
3. Svedberg Laboratory, Uppsala University (Sweden)
4. Department of radiation sciences, Uppsala university (Sweden)
5. Swedish Defence Research Agency, Stockholm (Sweden)
6. LPC, ISMRA (France)

A facility for detection of scattered neutrons in the energy interval 50-130 MeV, SCANDAL (SCAttered Nucleon Detection AssembLy), has recently been installed at the 20 - 180-MeV neutron beam line of The Svedberg Laboratory, Uppsala. Elastic neutron scattering from 12C, 16O, 56Fe, 89Y, and 208Pb has been studied at 96 MeV in the 10-70 deg. interval. The results from 12C and 208Pb have recently been published,6 while the data from 16O, 56Fe, and 89Y 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. The present experiment represents the highest neutron energy where the ground state has been resolved from the first excited state in neutron scattering. 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. The results are compared with modern optical model predictions, based on phenomenology or microscopic theory. Applications for these measurements are nuclear-waste incineration, single-event upsets in electronics, and fast-neutron therapy.

• OSTI ID: 20722697
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 769; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12
CROSS SECTIONS
ELASTIC SCATTERING
ENERGY DEPENDENCE
ENERGY RESOLUTION
EXCITED STATES
FAST NEUTRONS
GROUND STATES
IRON 56
LEAD 208
MEV RANGE
NEUTRON BEAMS
NEUTRON REACTIONS
OPTICAL MODELS
OXYGEN 16
RADIOACTIVE WASTES
YTTRIUM 89