Identification of /sup 145/Tb and /sup 144/Tb and levels in the N = 81 nucleus, /sup 145/Gd

Journal Article · Sun Jan 31 23:00:00 EST 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.1012· OSTI ID:5633353

Sousa, D C; Toth, K S; Bingham, C R; Kahler, A C; Zolnowski, D R

With the use of a helium gas-jet transport system the isotopes /sup 145/Tb and /sup 144/Tb were identified in a series of /sup 10/B+/sup 144/Sm irradiations. Nuclidic assignments were based on yields as a function of bombarding energy, ..gamma..-ray coincidences with gadolinium K x rays and comparisons with data from in-beam ..gamma..-ray studies. Thirteen transitions were observed to follow the decay of /sup 145/Tb (T/sub 1/2/ = 30 +- 3 sec). None of them were placed in a scheme incorporating six excited levels in /sup 145/Gd, th lowest two of which, 27.3 and 748.7 keV, were previously known from decay /sup 145/Gd/sup m/ decay. The nuclide /sup 144/Tb (T/sub 1/2/ = 5 +- 1 sec) was identified by observing the 742.9-keV ..gamma.. ray known from in-beam studies to be the 2/sup +/ (first-excited state)..-->..0/sup +/ (ground state) transition in /sup 144/Gd.

• Research Organization: Eastern Kentucky Univ., Richmond
• OSTI ID: 5633353
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 25:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651723 -- Nuclear Properties & Reactions
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Experimental-- Energy Levels & Transitions-- (-1987)
651725* -- Nuclear Properties & Reactions
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Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORON 10 REACTIONS
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GADOLINIUM 145
GADOLINIUM ISOTOPES
GAMMA RADIATION
HALF-LIFE
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOCHRONOUS CYCLOTRONS
ISOTOPES
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIATIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SAMARIUM 144 TARGET
SECONDS LIVING RADIOISOTOPES
SPIN
TARGETS
TERBIUM 144
TERBIUM 145
TERBIUM ISOTOPES
TEXAS A AND M CYCLOTRON