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CASTOR-V/21 multicase computations

For the given model of the isolated CASTOR-V/21 cask, those are considered additional 5 cases for each type of radiation defined using the cask side wall shield cutting by cylindrical surfaces. These 6 cases in total have been completed in a single computation of total running time 12.1 hours using the multithickness Monte Carlo technique [2].

Computed flux functional - ambient equivalent dose H*(10) [1] rates.

Below, the obtained results of neutron-gamma and gamma problems calculations are performed (see details in [2]).

Figure 1: Neutron axial dose rates distributions for the single cask

Figure 2: Secondary gamma axial dose rates distributions for the single cask

Figure 3: Primary gamma axial dose rates distributions for the single cask

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References

1. International Commission on Radiological Protection., International Commission on Radiation Units, and Measurements. Conversion coefficients for use in radiological protection against external radiation. Annals of the ICRP ; v. 26, no. 3/4. Published for the Commission by Pergamon Press, Oxford ;, 1st ed. edition, 1996 - 1997.
2. V.G. Mogulian. An approach to radiation shielding evaluations using estimators by expected scoring. 2025. doi:10.5281/zenodo.16781416.

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