COULOMB EXCITATION OF SOME RADIOACTIVE NUCLEI
The method of Coulomb excitation was used to study the low-lying nuclear- energy-level structure in severai radioactive nuclei. Protons from a 2-Mev Van de Graaff were used to bombard isotopes of /sup 147/Pm, /sup 147/Sm, and / sup 99/Tc. Deexcitation gamma rays were observed with a NaI(Tl) scintillation spectrometer. Gamma-ray, energies of 120 plus or minus 2.2 kev, 199 plus or minus 3.1 kev for 14 Sm, and 140 plus or minus 2.5 kev, 178 plus or minus 2.9 kev for /sup 99/Tc were obtained for the first time by the method of Coulomb excitation, although the energy levels were known to exist previously from BETA - decay studies. The absolute cross section and partial reduced transition probability were estimated for /sup 147/Sm and /sup 99/Tc. The presence of /sup 147/Sm as an impurity in the /sup 147/Pm sample prevented an accurate measurement of its gamma -ray spectrum. Total reduced transition probabilities were in accord with the single-particle estimate. (Dissertation Abstr., 24: No. 8, Feb. 1964)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-021350
- OSTI ID:
- 4006911
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
COULOMB EXCITATION
CROSS SECTIONS
DECAY
ENERGY LEVELS
EXCITATION
GAMMA RADIATION
IMPURITIES
MEASURED VALUES
NUCLEAR MODELS
PHYSICS
PROBABILITY
PROMETHIUM 147
PROTON BEAMS
RADIOACTIVITY
SAMARIUM 147
SCINTILLATION COUNTERS
SINGLE-PARTICLE MODEL
SPECTROMETERS
STATISTICS
TECHNETIUM 99
VAN DE GRAAFF ACCELERATORS