NEW YTTRIUM ISOMERS OF MASSES 86 AND 90

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.123.184· OSTI ID:4027006

Haskin, L; Vandenbosch, R

Cyclotron bombardment of Rb with alpha particles and Sr with deuterons yield two new yttrium activities. Y/sup 86m/ decays with a half life of 49.0 plus or minus 1.5 min. The isomer is supported by a highly converted 7.2 kev isomeric transition followed by a 210 kev gamma ray having a conversion coefficient e/ gamma = 0.06 plus or minus 0.01. Y/sup 90m/ has a half life of 3.19 plus or minus 0.06 hr, decaying to the Y/sup 90/ ground state with emission of two gamma rays: 476 kev, e/ gamma = 0.10 plus or minus 0.02; and 203 kev, e/ gamma = 0.036 plus or minus 0.007. Spin and parity assignments are made for the Y/sup 90/ levels. (auth)

• Research Organization: Univ. of Wisconsin, Madison; Argonne National Lab., Ill.
• NSA Number: NSA-15-024356
• OSTI ID: 4027006
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CYCLOTRONS
DECAY
ENERGY RANGE
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
IRRADIATION
ISOMERS
MEASURED VALUES
PHYSICS
TARGETS
YTTRIUM