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DECAY OF $sub 64$Gd$sup 161$(3.73 min)

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
; ;

The decay of Gd/sup 161/ (3.73 min) is characterized bv beta emission to excited states in Tb/sup 161/. This activity was investigated by means of the Argonne 256-channel scintillation coincidence spectrometer and photographic internal-conversion-electron spectrographs. Sources were prepared by neutron irradiation of Gd, enriched in Gd/sup 160/, in the Argonne reactor, CP-5. The presence of three beta-ray branches is deduced; two of these were observed experimentally by means of absorption methods. Fourteen gamma rays are reported. These radiations are fitted into a decay scheme which indicates excited states in Tb/sup 161/ at 56.6, 134.0, 315.3, the ground state and including the first two excited states, is indicated. Spin and parity assignments are also suggested for the third and fourth excited states. (auth)

Research Organization:
Argonne National Lab., Lemont, Ill.; Univ. of Michigan, Ann Arbor
NSA Number:
NSA-13-022933
OSTI ID:
4209254
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Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 115; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ABSORPTION
BETA DECAY
BETA PARTICLES
BETA SPECTROMETERS
COINCIDENCE METHODS
DECAY
ELECTRONS
ENERGY LEVELS
ENRICHMENT
EXCITATION
GADOLINIUM 160
GADOLINIUM 161
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
IRRADIATION
MEASURED VALUES
NEUTRONS
NUCLEAR MODELS
PARITY
PHOTOGRAPHIC FILM DETECTORS
PHYSICS AND MATHEMATICS
REACTORS
ROTATION
ROTATIONAL STATE
SCINTILLATION COUNTERS
SPECTRA
SPIN
TERBIUM 161