Non-statistical effects in the radiative capture cross sections of the neodymium isotopes. [KeV range, correlations, mechanisms]
Technical Report
·
OSTI ID:7109545
The neutron capture cross sections of the stable neodymium isotopes were measured with high energy resolution in the keV region at the 40 m station of ORELA. Average resonance parameters are extracted for s-wave resonances. Significant positive correlations are found between GAMMA/sup 0//sub n/ and GAMMA/sub ..gamma../ for all isotopes. The magnitude of the observed correlation coefficient, particularly for /sup 142/Nd (rho = 0.9), cannot be explained in terms of valence neutron capture and additional mechanisms are discussed. The average s-wave radiative widths for the odd-A isotopes are markedly greater than for the even-A isotopes, while the p-wave radiative width for /sup 142/Nd is considerably less than the s-wave width.
- Research Organization:
- Australian Atomic Energy Commission Research Establishment, Lucas Heights
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7109545
- Report Number(s):
- AAEC/E-401
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651725* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CAPTURE
CORRELATIONS
CROSS SECTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
KEV RANGE
KINETICS
NEODYMIUM 142
NEODYMIUM ISOTOPES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTIAL WAVES
RARE EARTH NUCLEI
REACTION KINETICS
RESONANCE
S WAVES
STABLE ISOTOPES
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CAPTURE
CORRELATIONS
CROSS SECTIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
KEV RANGE
KINETICS
NEODYMIUM 142
NEODYMIUM ISOTOPES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTIAL WAVES
RARE EARTH NUCLEI
REACTION KINETICS
RESONANCE
S WAVES
STABLE ISOTOPES