Quadrupole moments of isomers in the A =90 region and the tilted-foil polarization of a separated reaction-product beam

Journal Article · Wed May 01 04:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.2140· OSTI ID:5463409

Hass, M; Satteson, M; Wu, C Y ^[1]; Broude, C ^[2]; Benczer-Koller, N ^[3]

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1. Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627 (USA)
2. The Weizmann Institute of Science, Rehovot, Israel (IL)
3. Rutgers University, New Brunswick, New Jersey 08903 (USA)

The quadrupole interaction of {ital polarized} {sup 92}Mo(8{sup +},{tau}=0.29 {mu}s) and {sup 93}Ru(21/2{sup +},{tau}=3.5 {mu}s) isomers in a single crystal of Zr has been measured. The experiment utilizes the nuclear polarization induced by the tilted-multifoil interaction with separated isomer beams from a mass spectrometer. The magnitudes and signs of the quadrupole moments were deduced to be {minus}0.33 and +0.04 b for {sup 92}Mo(8{sup +}) and {sup 93}Ru (21/2{sup +}), respectively. Together with previous work on the {sup 88,90}Zr(8{sup +}) isomers, this experiment sheds light on the particle-hole shell-model structure in the {ital A}=90 region. It also serves as a calibration of a recent experiment on parity mixing in the 17/2{sup {minus}}-17/2{sup +} doublet in {sup 93}Tc. The induced nuclear polarization under the conditions of a separated reaction-product beam is found to be substantially higher than in previous in-beam experiments.

• OSTI ID: 5463409
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BEAMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CRYSTALS
DATA
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVAPORATION MODEL
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MASS SPECTROMETERS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MOLYBDENUM 92
MOLYBDENUM 92 REACTIONS
MOLYBDENUM ISOTOPES
MONOCRYSTALS
NANOSEC LIVING RADIOISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
POLARIZED BEAMS
QUADRUPOLE MOMENTS
RADIOISOTOPES
RUTHENIUM 93
RUTHENIUM ISOTOPES
SECONDS LIVING RADIOIS
SHELL MODELS
SPECTROMETERS
SPIN
STABLE ISOTOPES
ZIRCONIUM ISOTOPES