Excitation of isomeric states of the nuclei sup 167 Er, sup 179 Hf, and sup 183 W in (. gamma. ,. gamma. prime ) sup m reactions
Journal Article
·
· Soviet Journal of Nuclear Physics (English Translation); (USA)
OSTI ID:5505772
- Institute of Nuclear Research, Ukrainian Academy of Sciences (UA)
Cross sections for excitation of the nuclear isomers {sup 167{ital m}}Er, {sup 179{ital m}}Hf, and {sup 184{ital m}}W in inelastic scattering of {gamma} rays have been determined. The measurements were made in the energy range 4--12 MeV with a step {Delta}{ital E}=0.5 MeV. At {ital E}=6 MeV an estimate of the isomeric ratios was made. The strong dependence of the magnitude of the ({gamma},{gamma}{prime}){sup {ital m}} reaction and the isomeric ratio on the difference of the ground-state spin {ital J}{sub {ital g}} and the isomeric-state spin {ital J}{sub {ital m}}, {Delta}{ital J}={vert bar}{ital J}{sub {ital g}}{minus}{ital J}{sub {ital m}}{vert bar}, is explained by a significant admixture of two-quantum transitions in the {gamma} cascade which populates the isomeric state.
- OSTI ID:
- 5505772
- Journal Information:
- Soviet Journal of Nuclear Physics (English Translation); (USA), Journal Name: Soviet Journal of Nuclear Physics (English Translation); (USA) Vol. 49:4; ISSN 0038-5506; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DATA
ENERGY LEVELS
ENERGY RANGE
ERBIUM 167 TARGET
EXCITED STATES
EXPERIMENTAL DATA
GAMMA CASCADES
GROUND STATES
HAFNIUM 179 TARGET
INFORMATION
ISOMER RATIO
ISOMERIC NUCLEI
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NUCLEAR CASCADES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PHOTONUCLEAR REACTIONS
TARGETS
TUNGSTEN 183 TARGET
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DATA
ENERGY LEVELS
ENERGY RANGE
ERBIUM 167 TARGET
EXCITED STATES
EXPERIMENTAL DATA
GAMMA CASCADES
GROUND STATES
HAFNIUM 179 TARGET
INFORMATION
ISOMER RATIO
ISOMERIC NUCLEI
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NUCLEAR CASCADES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PHOTONUCLEAR REACTIONS
TARGETS
TUNGSTEN 183 TARGET