Comparison of experimental and calculated shielding factors for modular buildings in a radioactive fallout scenario

Yvonne Hinrichsen*, Robert Finck, Karl Östlund, Christopher Rääf, Kasper Grann Andersson

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Experimentally and theoretically determined shielding factors for a common light construction dwelling type were obtained and compared. Sources of the gamma-emitting radionuclides 60Co and 137Cs were positioned around and on top of a modular building to represent homogeneous fallout. The modular building used was a standard prefabricated structure obtained from a commercial manufacturer. Four reference positions for the gamma radiation detectors were used inside the building. Theoretical dose rate calculations were performed using the Monte Carlo code MCNP6, and additional calculations were performed that compared the shielding factor for 137Cs and 134Cs. This work demonstrated the applicability of using MCNP6 for theoretical calculations of radioactive fallout scenarios. Furthermore, the work showed that the shielding effect for modular buildings is almost the same for 134Cs as for 137Cs.
    Original languageEnglish
    JournalJournal of Environmental Radioactivity
    Volume189
    Pages (from-to)146-155
    ISSN0265-931X
    DOIs
    Publication statusPublished - 2018

    Keywords

    • Shielding factor
    • Monte Carlo simulations
    • Experimental validation

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