Average resonance capture studies of /sup 162,164/Dy
Primary ..gamma..-ray transitions in /sup 162/Dy and /sup 164/Dy have been studied following average resonance neutron capture with neutron beams of mean energy 2 and 24 keV. The averaging process guarantees the observation of the complete set of J/sup ..pi../ = 1/sup -//sup(/sup +/), 2/sup + -/, 3/sup + -/, 4/sup -//sup(/sup +/) states in /sup 162/Dy (/sup 164/Dy) up to an excitation energy of 2 MeV. Use of the results of recent Monte Carlo calculations has been made to establish semiquantitative criteria for the J/sup ..pi../ assignments. Further spin limitations have been imposed by the study of primary transitions following capture in the 2.72 and 3.68 eV resonances in /sup 162/Dy and the 1.71 eV resonance in /sup 164/Dy. The known completeness of the set of observed levels has been used to establish a correspondingly complete band structure in both nuclei. The results are discussed in the framework of both the interacting boson approximation and the geometrical model.
- Research Organization:
- Brookhaven National Laboratory, Upton, New York 11973
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6017466
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 27:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
A=150-189
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CAPTURE
DYSPROSIUM 162
DYSPROSIUM 164
DYSPROSIUM ISOTOPES
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA RADIATION
HADRON REACTIONS
INTERACTING BOSON MODEL
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
MATHEMATICAL MODELS
MONTE CARLO METHOD
NEUTRON REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
RADIATIONS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RESONANCE
SHELL MODELS
STABLE ISOTOPES