Decay of 2. 22-sec 1 /sub 56//sup 46/Ba/sub 90/ to levels of odd-odd 1 /sub 57//sup 46/La/sub 89/

Journal Article · Sat Jun 01 04:00:00 EDT 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.31.2199· OSTI ID:5643616

Chung, C; Walters, W B; Brenner, D S; Gill, R L; Shmid, M; Chu, Y Y; Chrien, R E; Yuan, L; Wohn, F K; Meyer, R A

The decay of 1 /sub 56//sup 46/Ba/sub 90/ to levels of odd-odd 1 /sub 57//sup 46/La/sub 89/ has been studied in experiments in which ..gamma gamma..t coincidence, ..gamma gamma..t(theta) angular correlation, ..gamma..-ray singles, and time-dependent ..gamma..-ray spectra were collected. The /sup 146/Ba activity was produced directly by on-line mass separation from the fission products of the /sup 235/U(n/sub th/,f) reaction. The half-life of /sup 146/Ba was determined to be 2.22 +- 0.07 sec. A level scheme containing 48 levels and 231 ..gamma.. rays is proposed for /sup 146/La. Spin and parity for some levels below 1.2 MeV are assigned on the basis of angular correlation measurements and ..beta..-ray branching. Details of the level scheme are discussed within the context of the level systematics of neighboring odd-odd La isotopes and N = 89 odd-odd isotones.

• Research Organization: Department of Chemistry, University of Maryland, College Park, Maryland 20742
• OSTI ID: 5643616
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 31:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651722* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Radioactive Decay-- (-1987)
651723 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR CORRELATION
ANGULAR MOMENTUM
BARIUM 146
BARIUM ISOTOPES
BARYON REACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
COINCIDENCE SPECTROMETRY
CORRELATIONS
DATA
DECAY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FISSION
FT VALUE
GAMMA SPECTRA
HADRON REACTIONS
HALF-LIFE
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LANTHANUM 146
LANTHANUM ISOTOPES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPIN
TARGETS
THERMAL FISSION
URANIUM 235 TARGET