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Fine structure in /sup 153/Tm. cap alpha. decay

Journal Article · · Phys. Rev. C; (United States)
; ; ; ; ;

In an investigation of A = 153 isotopes fine structure was observed in /sup 153/Tm ..cap alpha.. decay. Besides the previously known ..cap alpha.. transitions that feed the /sup 149/Ho h/sub 11/2/ (0.0 keV) and s/sub 1/2/ (49.0 keV) isomers, two, very much weaker, ..cap alpha.. groups were found to populate the d/sub 3/2/ (220.4 keV) and d/sub 5/2/ (564.4 keV) states in /sup 149/Ho. Based on the /sup 149/Ho level scheme and on the Q/sub ..cap alpha../ values for the two main /sup 153/Tm ..cap alpha.. transitions, we determine that the h/sub 11/2/ level in /sup 153/Tm is the ground state and that the s/sub 1/2/ state lies 43 +- 7 keV above it. Energy systematics for the s/sub 1/2/ and h/sub 11/2/ proton states in even-N odd-Z nuclei near N = 82 are discussed.

Research Organization:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
OSTI ID:
6792704
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:4; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651720 -- Nuclear Properties & Reactions
A=90-149
Experimental
651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
BARYONS
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
FERMIONS
FINE STRUCTURE
HADRONS
HALF-LIFE
HARTREE-FOCK-BOGOLYUBOV THEORY
HEAVY ION ACCELERATORS
HEAVY ION REACTIONS
HILACS
HOLMIUM 149
HOLMIUM ISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITIONS
ISOTOPES
LINEAR ACCELERATORS
MEV RANGE
MEV RANGE 100-1000
MOLYBDENUM 92 TARGET
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
PROTONS
Q-VALUE
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SUPERHILAC
TARGETS
THULIUM 153
THULIUM ISOTOPES
ZINC 64 REACTIONS