The Neutron Spectrum of NBS-1

    Volume 3, Issue 4 (April 2006)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Page Count: 7


    Heimbach, CR
    Physicist, National Institute of Standards and Technology, Gaithersburg, MD

    (Received 20 June 2005; accepted 25 October 2005)

    Abstract

    A proposed set of photonuclear cross sections was used to calculate the neutron spectrum of a RaBe photoneutron source. The calculation used the gamma rays from 226Ra in equilibrium as a driver, transported the gamma rays through the materials of the source, calculated neutron production, and subsequent neutron scattering. The calculation produced 27 % more neutrons than measured, and predicted relatively more low-energy neutrons.


    Paper ID: JAI13474

    DOI: 10.1520/JAI13474

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    Author
    Title The Neutron Spectrum of NBS-1
    Symposium Reactor Dosimetry, 12th Volume, 2005-05-13
    Committee E10