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Investigation of α-induced reactions on niobium and tantalum

I. measurement of93Nb,181Ta(α,x n y p) excitation functions up to 171 MeV

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Excitation functions of (α,xn yp) reactions on93Nb withy≦6 andx≦10 have been measured in four different irradiations from 16 to 171 MeV bombarding energy by Ge(Li) spectroscopy of the residual activity of stacked foils. Similarly, previous measurements of181Ta(α,x n y p) reactions from 15 to 103 MeV were extended up to 170 MeVα-energy for residual nuclei withy≦4 andx≦12. Including isomeric states a total number of 37 residual activities could be identified in93Nb+α. From the rather complexγ-decay spectra altogether 28 different excitation functions of sizable length could be established. For181Ta+α 10 different residual activities were analyzed so that together with the former data a set of 15 excitation functions is available. The whole set of excitation functions provides a large data basis for probing the validity of combined equilibrium and preequilibrium reaction models in a wide energy range.

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Author notes

  1. R. Ibowski

    Present address: Internationale Atomreaktorbau GmbH, D-5060, Bergisch Gladbach 1, FRG

  2. H. Machner

    Present address: Institut für Kernphysik der KFA-Jülich, Postfach 1913, D-5170, Jülich, FRG

Authors and Affiliations

  1. Institut für Strahlen- und Kernphysik der Universität, Bonn, Federal Republic of Germany

    J. Ernst, R. Ibowski, H. Klampfl, H. Machner, T. Mayer-Kuckuk & R. Schanz

  2. FB Physik, Universität Bremen, Postfach, D-2800, Bremen 33, FRG

    H. Machner

Authors
  1. J. Ernst
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  2. R. Ibowski
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  3. H. Klampfl
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  4. H. Machner
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  5. T. Mayer-Kuckuk
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  6. R. Schanz
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Additional information

The authors gratefully acknowledge the good working conditions at the Institut für Kernphysik der KFA-Jülich, and thank both crews at JULIC and BICYCL for providing the respective high energyα-beams. This work was supported by the German Bundesminister für Forschung und Technologie.

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Ernst, J., Ibowski, R., Klampfl, H. et al. Investigation of α-induced reactions on niobium and tantalum. Z Physik A 308, 301–313 (1982). https://doi.org/10.1007/BF01415879

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  • DOI: https://doi.org/10.1007/BF01415879

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