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

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Comparison of experimental and calculated shielding factors for modular buildings in a radioactive fallout scenario. / Hinrichsen, Yvonne; Finck, Robert; Östlund, Karl; Rääf, Christopher; Andersson, Kasper Grann.

In: Journal of Environmental Radioactivity, Vol. 189, 01.09.2018, p. 146-155.

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TY - JOUR

T1 - Comparison of experimental and calculated shielding factors for modular buildings in a radioactive fallout scenario

AU - Hinrichsen, Yvonne

AU - Finck, Robert

AU - Östlund, Karl

AU - Rääf, Christopher

AU - Andersson, Kasper Grann

PY - 2018/9/1

Y1 - 2018/9/1

N2 - 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.

AB - 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.

KW - Experimental validation

KW - Monte Carlo simulations

KW - Shielding factor

U2 - 10.1016/j.jenvrad.2018.04.005

DO - 10.1016/j.jenvrad.2018.04.005

M3 - Article

C2 - 29673949

AN - SCOPUS:85045476132

VL - 189

SP - 146

EP - 155

JO - Journal of Environmental Radioactivity

JF - Journal of Environmental Radioactivity

SN - 1879-1700

ER -