Neutron scattering cross sections for /sup 232/Th, /sup 233/U, /sup 235/U, /sup 238/U, /sup 239/Pu, and /sup 242/Pu between 0. 6 and 3. 4 MeV

Journal Article · Sun Aug 01 00:00:00 EDT 1982 · Nucl. Sci. Eng.; (United States)

OSTI ID:6017091

Haouat, G; Jary, J; Lachkar, T; Lagrange, Ch; Patin, Y; Sigaud, J

Differential cross sections for neutron elastic and inelastic scattering from the actinide nuclei /sup 232/Th, /sup 233/U, /sup 235/U, /sup 238/U, /sup 239/Pu, and /sup 242/Pu have been measured at incident energies ranging from 0.6 to 3.4 MeV using a multiangle time-of-flight spectrometer. The energy resolution of the spectrometer was high enough to experimentally resolve the elastic and first inelastic groups for /sup 232/Th, /sup 233/U, /sup 238/U, and /sup 242/Pu at all energies. Cross section for groups of states have been obtained for /sup 235/U and /sup 239/Pu. Comparison of these measurements with evaluations in the latest evaluated data files shows substantial discrepancies, particularly at high energies. The present results for /sup 232/Th, /sup 235/U, /sup 238/U, and /sup 239/Pu have been combined with total cross-section measurements and low-energy scattering properties in an analysis based on the coupled-channel and compound-nucleus formalisms. Optical potential parameters and nuclear deformations have been derived and are discussed.

• Research Organization: Centre d'Etudes de Bruyeres-le-Chatel, Service de Physique; Neutronique et Nucleaire B.P. No. 561, 92542 Montrouge Cedex, France
• OSTI ID: 6017091
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 81:4; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
BARYON REACTIONS
COHERENT SCATTERING
CROSS SECTIONS
DEFORMATION
DIFFRACTION
ENERGY RANGE
HADRON REACTIONS
HEAVY NUCLEI
KEV RANGE
KEV RANGE 100-1000
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 01-10
NEUTRON DIFFRACTION
NEUTRON REACTIONS
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PLUTONIUM 239 TARGET
PLUTONIUM 242 TARGET
SCATTERING
SPECTROMETERS
TARGETS
THORIUM 232 TARGET
TIME-OF-FLIGHT SPECTROMETERS
URANIUM 233 TARGET
URANIUM 235 TARGET
URANIUM 238 TARGET
URANIUM 239 TARGET