Abstract
First experiments in the systematic study of the structure of ground states and isomeric states of Br isotopes as function of neutron number at ISOLDE, CERN are reported. The isotopes74g.74m,77,78,84g,84mBr have been implanted into iron and studied with the techniques of low temperature nuclear orientation and nuclear magnetic resonance of oriented nuclei (NMR/ON). The experiments were performed with the NICOLE on-line nuclear orientation set-up using the isotope separator ISOLDE-3. NMR/ON experiments were successful for74mBr with continuous on-line implantation and for77Br. Using as value of the hyperfine field Bhf(BrFe)=+81.3S (3) T we obtain |g (74mBr)|=0.455 (3) and |g (77Br)|=0.6492 (3). Static nuclear orientation data have been measured for all above mentioned isotopes. From these data we derive |μ(78Br, I=1)|=0.13 (3) and |μ(84gBr, I=2)|=1.9 (7). The results are discussed within the systematics of the bromine isotopes.
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Prinz, J., Berkes, I., Herzog, P. et al. Study of short-lived bromine isotopes. Hyperfine Interact 75, 275–282 (1992). https://doi.org/10.1007/BF02398983
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DOI: https://doi.org/10.1007/BF02398983