Abstract
Short-lived isomers in the nuclei90,92Nb,99Mo,98,100,101Tc and101Ru populated in photonuclear reactions were studied by pulsed beam techniques. Energy and half-life of theγ-rays deexciting the isomeric levels were measured by recording energy-time spectra. The delayedγ-rays andK X-rays were detected by means of an intrinsic Ge-detector of high resolution. From the measured intensity ratios internal conversion coefficients were determined. The multipolarities of the isomeric transitions could be deduced in most cases. A classification of the observed isomers has been tried on the basis of the obtained experimental results and most recent literature data.
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Supported by the Deutsche Forschungsgemeinschaft and the Bundesministerium für Forschung und Technologie
We would like to thank Dr. J.R. Comfort (Accelerator Institute, University of Groningen) and Dr. D. Heck (Institut für Angewandte Kernphysik, GKF Karlsruhe) for sending us their experimental results concerning98Tc and100Tc prior to publication.
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Bartsch, H., Huber, K., Kneißl, U. et al. An investigation of short-lived isomers in the nuclei90,92Nb,99Mo,98,100,101Tc and101Ru. Z Physik A 285, 273–281 (1978). https://doi.org/10.1007/BF01408240
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DOI: https://doi.org/10.1007/BF01408240