Decay of /sup 90/Rb/sup g/ and /sup 90/Rb/sup m/

Journal Article · Wed Apr 01 04:00:00 EST 1981 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.23.1726· OSTI ID:6521838

Talbert, Jr, W L; Wohn, F K; Alquist, L J; Duke, C L

The ..beta.. and subsequent ..gamma.. decays of /sup 90/Rb/sup g/ and /sup 90/Rb/sup m/ have been studied using an on-line isotope separator system. Ge(Li) ..gamma..-ray singles and ..gamma..-..gamma.. coincidence measurements were used to construct level schemes for /sup 90/Sr. The decays of the two /sup 90/Rb activities were distinguished using a set of four experiments in which the collection and observation parameters were adjusted to change the relative decay intensities. For the decay of /sup 90/Rb/sup g/, 83 attributed ..gamma..-ray transitions were placed among 33 excited states of /sup 90/Sr, whereas for the decay of /sup 90/Rb/sup m/, 43 excited states of /sup 90/Sr provided placement for 108 attributed ..gamma.. rays. Twelve ..gamma.. rays were not placed in either level scheme, and 42 transitions are common to both decays. Spin and parity assignments have been deduced using ..beta..-decay logft values, ..gamma..-..gamma.. angular correlation data, and reaction data in the literature. Interpretation of some of the energy levels is made from a shell-model viewpoint.

• Research Organization: Ames Laboratory--Department of Energy and Department of Physics, Iowa State University, Ames, Iowa 50011
• OSTI ID: 6521838
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 23:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651722* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Radioactive Decay-- (-1987)
651723 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
652026 -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
COINCIDENCE SPECTROMETRY
DECAY
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FISSION
FT VALUE
GAMMA RADIATION
HADRON REACTIONS
HALF-LIFE
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NEUTRON REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIATIONS
RADIOISOTOPES
RUBIDIUM 90
RUBIDIUM ISOTOPES
SHELL MODELS
SPIN
STRONTIUM 90
STRONTIUM ISOTOPES
TARGETS
URANIUM 235 TARGET
YEARS LIVING RADIOISOTOPES