Abstract
The perturbation of the decay constant of90mNb implanted in various transition metals (Zr, Nb, Hf, Ta, Ag and Au) has been determined by direct half-life measurements. Particular care was taken to evaluate and minimize possible systematic errors. The maximum relative change found is νAu−νNb/νNb=(4.5±0.8)%
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Onderzoeker I.I.K.W.
The authors would like to acknowledge the help of Prof. J. Vervier, R. Janssens, C. Michel, Prof. G. Grégoire as well as that of the crew of the cyclotron of the University of Louvain at various stages of the measurements, and to thank Prof. P. Macq for the hospitality at the U.C.L.
They also would like to thank Dr. H. Eschbach (C.B.N.M., Geel) for the preparation of the Zr targets, E. Musyck (C.E.N./S.C.K.) for providing the random and the exponentially decaying pulse generators, and P. D'Hooghe, E. Mies, L. Vansteelandt and their colleagues for excellent technical support.
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Meykens, A., Fettweis, P. & de Mévergnies, M.N. Perturbation of the decay rate of90mNb by implantation in metals. Z Physik A 284, 417–423 (1978). https://doi.org/10.1007/BF01422111
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DOI: https://doi.org/10.1007/BF01422111