Nuclear deformation in the actinide region by proton inelastic scattering

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.189· OSTI ID:5754422

Hansen, L F; Proctor, I D; Heikkinen, D W; Madsen, V A

Elastic and inelastic proton differential cross sections have been measured for /sup 232/Th and /sup 238/U at incident energies of 20 and 26 MeV. Scattered protons were detected with a split-pole spectrometer using a position sensitive delay-line proportional counter. Proton groups up to the 8/sup +/ level in the ground state rotational band have been measured. The analysis of the data has been done using coupled-channel calculations for deformed nuclei. We have studied the sensitivity of the calculations to (a) the optical model parameters, (b) the shape of the nuclear charge distribution, (c) the coupling scheme assumed among the levels, and (d) the magnitude and sign ( +- ..beta../sub 6/) of the deformation parameters. The calculated multipole potential moments, obtained from the best fits to the data, agree well with the values deduced from proton measurements at other energies. They are also in good agreement with the values reported from Coulomb excitation and inelastic scattering using ..cap alpha.. particles and neutron probes.

• Research Organization: Lawrence Livermore National Laboratory, Livermore, California 94550
• OSTI ID: 5754422
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 25:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

652023 -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Energy Levels & Transitions-- (-1987)
652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DATA
DEFORMATION
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
EXPERIMENTAL DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
OPTICAL MODELS
PARITY
PARTICLE PROPERTIES
PROPORTIONAL COUNTERS
PROTON REACTIONS
RADIATION DETECTORS
ROTATIONAL STATES
SCATTERING
SPIN
TARGETS
THORIUM 232 TARGET
URANIUM 238 TARGET