Published April 17, 2008
| Version v1
Journal article
Experimental Level Densities and γ-Strength Functions in rare earth nuclei
Creators
- 1. Department of Physics, University of Oslo, P.O. Box 1048 Blindern, N-0316 Oslo (Norway)
- 2. Triangle Universities Nuclear Laboratory Durham, NC 27708 (United States)
- 3. North Carolina State University Raleigh, NC 27695 (United States)
- 4. Department of Physics and Astronomy Ohio University, Athens, Ohio 45701 (United States)
- 5. Frank Laboratory of Neutron Physics, Joint Institute of Nuclear Research, 141980 Dubna, Moscow region (Russian Federation)
- 6. Norwegian Defence Research Establishment, P.O. Box 25, N-2027 Kjeller (Norway)
Description
The level density and radiative strength function for 146,147Sm and 163,164Dy have been extracted from primary γ spectra using the Oslo method. As one approaches the closed N = 82 neutron shell, the structures in the level density become more pronounced due to shell effects. The experimental level densities can be used to explore thermodynamic properties of the nucleus within the microcanonical ensemble. Pygmy resonances, which are based on the scissors mode and seen in deformed rare-earth nuclei, are not observed in near-spherical 146,147Sm, as expected. Pygmy resonances in 163,164Dy were studied after 3He-induced reactions and their width was found to be twice as wide as compared to results reported after neutron-capture reactions
Additional details
Identifiers
- DOI
- 10.1063/1.2920748;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 1005
- Journal Issue
- 1
- Journal Page Range
- p. 65-69
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 2007 international workshop on compound-nuclear reactions and related topics
- Acronym
- CNR 2007
- Dates
- 22-26 Oct 2007
- Place
- Yosemite National Park, CA (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40023080
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CAPTURE; DYSPROSIUM 163; DYSPROSIUM 164; ENERGY-LEVEL DENSITY; GAMMA SPECTRA; HELIUM 3; NEUTRON REACTIONS; NUCLEAR STRUCTURE; RESONANCE; RESONANCE NEUTRONS; SAMARIUM 146; SAMARIUM 147; SHELL MODELS; STRENGTH FUNCTIONS
- Descriptors DEC
- ALPHA DECAY RADIOISOTOPES; BARYON REACTIONS; BARYONS; DYSPROSIUM ISOTOPES; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; FUNCTIONS; HADRON REACTIONS; HADRONS; HELIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NEUTRONS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; RADIOISOTOPES; RARE EARTH NUCLEI; SAMARIUM ISOTOPES; SPECTRA; STABLE ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- (c) 2008 American Institute of Physics