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Determination of integral fast fission cross sections (n,f) of 238U, 237Np, and 242Pu in a directed fission neutron beam at FRM II, Garching

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Abstract

Small samples of 238U, 237Np, and 242Pu were irradiated in a focused beam of fission neutrons at the Forschungsneutronenquelle Heinz Maier-Leibnitz, FRM II in Garching, Germany. Decay measurements after irradiation revealed a number of fission products produced. Using tabulated cumulative fission yields enabled determination of integral fission cross sections of the isotopes. Cross sections (n,f) for 238U, 237Np and 242Pu were determined as 0.38 ± 0.04, 3.17 ± 0.25, and 2.15 ± 0.30 barn respectively.

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Acknowledgements

We are greatly indebted to E. Mauerhofer at the FZJ and Zs. Revay and S. Söllradl from FRM II for assistance and valuable discussion. Unfortunately, provision of a high activity 241Am sample available at JRC Geel could not be materialized, otherwise we would also have presented data on this most important actinide.

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Authors and Affiliations

  1. TU - Wien Atominstitut, Stadionallee 2, 1020, Vienna, Austria

    Angelika Hable, C. Ramsl, Erwin Jericha & Helmuth Böck

  2. Forschungszentrum Jülich GmbH, 52425, Jülich, Germany

    T. H. Randriamalala & Matthias Rossbach

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  1. Angelika Hable
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  2. C. Ramsl
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  3. Erwin Jericha
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  4. Helmuth Böck
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  5. T. H. Randriamalala
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  6. Matthias Rossbach
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Correspondence to Matthias Rossbach.

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Hable, A., Ramsl, C., Jericha, E. et al. Determination of integral fast fission cross sections (n,f) of 238U, 237Np, and 242Pu in a directed fission neutron beam at FRM II, Garching. J Radioanal Nucl Chem 314, 1471–1476 (2017). https://doi.org/10.1007/s10967-017-5512-7

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  • DOI: https://doi.org/10.1007/s10967-017-5512-7

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