Decay properties of /sup 153/Yb and /sup 153/Tm; Excitation energies of the s/sub 1/2/ and h/sub 11/2/ proton states in /sup 153/Tm
Creators
- 1. Louisiana State University, Baton Rouge, Louisiana 70803
Description
The decay properties of /sup 153/Yb and /sup 153/Tm, produced in /sup 64/Zn bombardments of /sup 92/Mo, were investigated following on-line mass separation. A decay scheme, incorporating 34 transitions and 25 levels in /sup 153/Tm, was constructed for /sup 153/Yb. It establishes the s/sub 1/2/ proton level in /sup 153/Tm to be isomeric at an excitation energy of 43.2 keV. The α-decay branch of the h/sub 11/2/ /sup 153/Tm ground state was determined to be 91 +- 3%. In addition, a partial decay scheme was put together for the 9% β+ branch. About 66% of this β+ decay proceeds to the h/sub 9/2/ neutron state located at 299.3 keV in /sup 153/Er. Only one transition, 266.5 keV, could be assigned to the β+ decay of the /sup 153/Tm s/sub 1/2/ isomer; it is suggested that the γ ray deexcites the p/sub 3/2/ neutron level to the f/sub 7/2/ /sup 153/Er ground state. Based on the intensity of this 266.5-keV γ ray, the isomer's α branch was estimated to be ∼93%
Additional details
Publishing Information
- Journal Title
- Physical Review, C
- Journal Volume
- 39
- Journal Issue
- 2
- Series
- Phys. Rev., C.
- Journal Page Range
- 636-644
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20032320
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ALPHA DECAY; BETA-PLUS DECAY; COINCIDENCE SPECTROMETRY; COMPOUND-NUCLEUS REACTIONS; ENERGY LEVELS; EXPERIMENTAL DATA; GAMMA SPECTRA; HALF-LIFE; ISOMERIC TRANSITIONS; ISOTOPE SEPARATION; MEV RANGE 100-1000; MOLYBDENUM 92 TARGET; PARITY; SHELL MODELS; SPIN; SUPERHILAC; THULIUM 153; YTTERBIUM 153; ZINC 64 REACTIONS
- Descriptors DEC
- ACCELERATORS; ALPHA DECAY RADIOISOTOPES; ANGULAR MOMENTUM; BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; COINCIDENCE METHODS; COUNTING TECHNIQUES; DATA; DECAY; ELECTRON CAPTURE RADIOISOTOPES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; HEAVY ION ACCELERATORS; HEAVY ION REACTIONS; HILACS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; LINEAR ACCELERATORS; MATHEMATICAL MODELS; MEV RANGE; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; RARE EARTH NUCLEI; SECONDS LIVING RADIOISOTOPES; SEPARATION PROCESSES; SPECTRA; TARGETS; THULIUM ISOTOPES; YTTERBIUM ISOTOPES