Measurement of thermal neutron capture cross sections of 237Np and 242Pu using prompt gamma neutron activation

  • Christoph Genreith
  • Matthias Rossbach
  • Eric Mauerhofer
  • Tamás Belgya
  • Guido Caspary


Several samples of 237Np and 242Pu were irradiated in the guided cold neutron beam of the prompt gamma activation analysis facility at the Budapest Research Reactor. The thermal neutron capture cross sections of 237 Np and 242Pu were evaluated from the obtained prompt and delayed gamma ray data. The thermal neutron capture cross sections for 237Np(n,γ)238Np was found to be \( \sigma_{0} ({}^{237}{\text{Np}}) = 170.4 \pm 7.4\,{\text{b}} \) and for 242Pu(n,γ)243Pu to be \( \sigma_{0} ({}^{242}{\text{Pu}}) = 19.6 \pm 3.9\,{\text{b}} \).


Prompt gamma activation Thermal capture cross section 237Np 242Pu 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • Christoph Genreith
    • 1
  • Matthias Rossbach
    • 1
  • Eric Mauerhofer
    • 1
  • Tamás Belgya
    • 2
  • Guido Caspary
    • 3
  1. 1.Institute of Energy and Climate Research - Nuclear Waste Management and Reactor Safety, Forschungszentrum Jülich GmbHJuelichGermany
  2. 2.Centre for Energy Research, Hungarian Academy of SciencesBudapest 114Hungary
  3. 3.Nuclear Services - Decontamination and Waste Management, N-D, Forschungszentrum Jülich GmbHJuelichGermany

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