Neutron-deficient isotopes of terbium with half-life of18 hours
Journal Article
·
· Czechoslovak Journal of Physics
The terbium isotopes having mass numbers <159 and half lives approximately -18 hrs were investigated. The isotopes were obtained from a proton-irradiated tantalum target. Most of the lines of the spectrum corresponded to Tb/sup 153/, Tb/sup 155/, and Tb/sup 1/ s/sup 56/. The continuous spectrum was separated into the components 13. An indication was found of a component with E/sub max/ = 1100 kev. Of the known conversion lines of Tb/sup 154/, only the strongest was found, at 123 kev; weaker lines were not observed and the other conversion 1ines were ascribed to a Tb/sup 151//sup +15/ >s/sup 2/ mixture. The energies of the corresponding transitions and the relative intensities of the conversion lines are tabulated. The accuracy in energy determinations is 0.3%, with weak lines>700 kev at 0.6%; the error of intensity determinations is 10to 20%. (B.O.G.)
- Research Organization:
- Czechoslovak Academy of Science, Prague
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-009988
- OSTI ID:
- 4094801
- Journal Information:
- Czechoslovak Journal of Physics, Journal Name: Czechoslovak Journal of Physics Journal Issue: 9 Vol. 10; ISSN 0011-4626
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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