Preliminary assessment of Geant4 HP models and cross section libraries by reactor criticality benchmark calculations

Xiao-Xiao Cai, Isabel Llamas-Jansa, Steven Mullet, Sverre Hval, Esben Bryndt Klinkby, Thomas Kittelmann, Kalliopi Kanaki, Richard Hall-Wilton, B. C. Hauback

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    Abstract

    Geant4 is an open source general purpose simulation toolkit for particle transportation in matter. Since the extension of the thermal scattering model in Geant4.9.5 and the availability of the IAEA HP model cross section libraries, it is now possible to extend the application area of Geant4 to reactor modelling. Before version 9.5, Geant4 HP thermal scattering model (i.e. the S(α; β) model ) supports only three bounded isotopes, namely, H in water and polyethylene, and C in graphite. Newly supported materials include D in heavy water, O and Be in beryllium oxide, H and Zr in zirconium hydride, U and O in uranium dioxide, Al metal, Be metal, and Fe metal. The native HP cross section library G4NDL does not include data for elements with atomic number larger than 92. Therefore, transuranic elements, which have impacts for a realistic reactor, can not be simulated by the combination of the HP models and the G4NDL library. However, cross sections of those missing isotopes were made available recently through the IAEA project “new evaluated neutron cross section libraries for Geant4”.
    Original languageEnglish
    Title of host publicationProceedings of 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)
    Number of pages2
    PublisherIEEE
    Publication date2013
    ISBN (Print)978-1-4799-0533-1
    DOIs
    Publication statusPublished - 2013
    Event2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference and 20th Symposium on Room-Temperature: Beyond Imagination of Future Science - COEX Convention Center Grand Ball Room, Seoul, Korea, Republic of
    Duration: 27 Oct 20132 Nov 2013
    Conference number: 60/20
    http://www.nss-mic.org/2013/nssmain.asp

    Conference

    Conference2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference and 20th Symposium on Room-Temperature
    Number60/20
    LocationCOEX Convention Center Grand Ball Room
    Country/TerritoryKorea, Republic of
    CitySeoul
    Period27/10/201302/11/2013
    Internet address

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