Studies of Z = 81 transitional nuclei II: /sup 193/Pb and /sup 195/Pb decay. [Lifetime, half-life]

Technical Report · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6158724

Collins, L L; Wood, J L; Schmidt, A G

Levels in /sup 193/ /sup 195/Tl were studied by the radioactive decay of mass-separated /sup 193/ /sup 195/Pb. The decay of the 15.8-min high spin isomer (presumably 13/2/sup +/) in /sup 195/Pb populates 24 states in Tl while decay of the /sup 195/Pb ground state to 6 low-spin levels is observed. The decay of /sup 193/Pb is studied in detail for the first time. The high spin isomer is found to have a half life of 5.57 +- 0.12 min and to decay to 15 states in /sup 193/Tl. In addition, 5 low spin levels are observed, indicating a half-life of 4.0 +- 0.7 min for the ground-state of /sup 193/Pb. In both nuclei, the s/sub 1/2/, d/sub 3/2/, and h/sub 11/2/ hole states are observed and the structure of levels built upon them is suggestive of weak coupling to Pb cores, as is also the case for /sup 197/Tl (previous paper). The structure of levels built upon the h/sub 9/2/ particle state in these two nuclei are also quite similar to the strongly coupled bands seen in /sup 197/Tl. Population of the i/sub 13/2/ particle state in /sup 193/Tl is observed; this is the only isotope of the three studied where the i/sub 13/2 excitation can be definitely observed and assigned. 13 references.

• Research Organization: Oak Ridge Associated Universities, Inc., TN (USA)
• OSTI ID: 6158724
• Report Number(s): ORO-4935-027
• Country of Publication: United States
• Language: English

Related Subjects

651922 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Radioactive Decay-- (-1987)
651923* -- Nuclear Properties & Reactions
A=190-219
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COUPLING
DATA
DATA FORMS
DECAY
ELECTRON CAPTURE DECAY
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GRAPHS
HALF-LIFE
HEAVY NUCLEI
HIGH SPIN STATES
HOURS LIVING RADIOISOTOPES
INFORMATION
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 193
LEAD 195
LEAD ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEAR CORES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
THALLIUM 193
THALLIUM 195
THALLIUM ISOTOPES