Abstract
The unreported hafnium isotope185Hf has been identified for the first time. Sources of185Hf prepared by 14-MeV neutron irradiation of tungsten followed by radiochemical separation have been studied. The new activity was identified by following the time variation of the γrays. The half-life of185Hf has been determined to be 3.5±0.6 min. In addition, a new 164.5±0.5keV γray was found and assigned to185Hf based on the measurements of transition energy and half-life.
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References
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This work was supported by Academia Sinica
The authors are grateful to Yin Xijin, Li Weisheng and Du Yifei for technical assistance, to thank the accelerator staff for efficient co-operation during the experiments. We would like to thank Prof. C. Bingham for reading the manuscript and making comments.
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Shuanggui, Y., Tianmei, Z., qiangyan, P. et al. New neutron-rich nuclide185Hf. Z. Physik A - Hadrons and Nuclei 344, 355–356 (1992). https://doi.org/10.1007/BF01303034
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DOI: https://doi.org/10.1007/BF01303034