Positron and γ-ray intensities in the decay of 45Ti
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Sebastian Kuhn
Abstract
To evaluate the PET-imaging properties of the promising positron emitter 45Ti, its β+- and γ-ray intensities were measured. Use of the cation-exchange resin DOWEX 50W×8 (H+-form) enabled the isolation of radiochemically pure, no-carrier-added 45Ti from “bulk” scandium after proton bombardment. Thin, no-carrier-added 45Ti samples were prepared. The combination of γ-ray and X-ray spectrometry with γγ-coincidence counting allowed for the first time the experimental determination of the positron intensity as (85.67 ± 2.23)% and the absolute intensity of the 720.22 keV γ-ray as (0.1171 ± 0.0057)%.
Acknowledgement
The authors are grateful to Prof. Dr. Dr. h.c. mult. S. M. Qaim for many helpful suggestions, to Mr. S. Spellerberg for technical assistance, and to Mr. K. Adrian and Mr. M. Holzgreve for many cyclotron-irradiations.
©2015 Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Positron and γ-ray intensities in the decay of 45Ti
- Discrete fragment model for apparent formation constants of actinide ions with humic substances
- Research of thermodynamic and kinetics in preparing U(IV) by reducing and catalyzing U(VI) with hydrazine
- Spent UO2 TRISO coated particles – instant release fraction and microstructure evolution
- Adsorption behavior of samarium(III) from aqueous solutions onto PAN@SDS core-shell polymeric adsorbent
- Extraction, radiolabeling and in vivo biological evaluation of 131I labeled egonol glycosides extract
- Chemical contents in Lygeum spartum L. using instrumental neutron activation analysis
