Tagging fast neutrons from a 252Cf fission-fragment source

Julius Scherzinger, Ramsey Al Jebali, John Annand, A Bala, Kevin Fissum, Richard Hall-Wilton, D Hamilton, Nicholai Mauritzson, Francesco Messi, Hanno Perrey, Emil Rofors

    Research output: Contribution to journalArticlepeer-review


    Coincidence and time-of-flight measurement techniques are employed to tag fission neutrons emitted from a 252Cf source sealed on one side with a very thin layer of Au. The source is positioned within a gaseous 4He scintillator detector. Together with α particles, both light and heavy fission fragments pass through the thin layer of Au and are detected. The fragments enable the corresponding fission neutrons, which are detected in a NE-213 liquid-scintillator detector, to be tagged. The resulting continuous polychromatic beam of tagged neutrons has an energy dependence that agrees qualitatively with expectations. We anticipate that this technique will provide a cost-effective means for the characterization of neutron-detector efficiency in the energy range 1–6 MeV.
    Original languageEnglish
    Pages (from-to)270-274
    JournalApplied Radiation and Isotopes
    Publication statusPublished - 2017

    Subject classification (UKÄ)

    • Subatomic Physics


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