Abstract
The 178m2Hf with its long-lived (T1/2=31 y), high-spin Iπ = 16+, isomeric state, is a challenge for new and exotic nuclear physics studies. The 178m2Hf isomer has been produced in microweight quantities using the 176Yb(α,2n) nuclear reaction, by irradiation with a high-intensity beam using the U-200 cyclotron in Dubna. Radiochemistry and mass separation methods have been developed, with the aim to separate and purify the produced Hf material. Thin targets of isomeric hafnium-178 on carbon backings have been prepared and used in experiments with neutron, proton and deuteron beams.
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Oganessian, Y., Hussonnois, M., Brianôcon, C. et al. Production, chemical and isotopic separation of the178m2Hf high-spin isomer. Hyperfine Interactions 107, 129–139 (1997). https://doi.org/10.1023/A:1012047504207
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DOI: https://doi.org/10.1023/A:1012047504207