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|Title:||Note on the accident dose mapping of the fuel handling area of a fuel reprocessing plant using Monte Carlo techniques|
Singh, Kapil Deo
Sharma, V K
|Abstract:||Radiation dose mapping of the Spent Fuel Storage Building (SFSB) housing large number of Pressurised Heavy Water Reactor (PHWR) spent fuel bundles has been carried out using Monte Carlo based shielding code. The general methodology followed in this study involves postulation of severe accident sequences and their evaluation for on-site consequences. These accidents are extremely improbable accidents that might occur due to a combination of human error, violation of operating procedure, and failure of maintenance procedure. Probabilities were not calculated in this exercise. Two severe accident scenarios are postulated for this analysis: (1) Accidental falling of the fuel transfer cask containing irradiated fuel bundles and (2) Loss of water cover to the spent fuels in the storage pool. Since the analysis involves for the most part shielding of large number of sources and their complex geometries, an elaborate Monte Carlo model of the SFSB has been generated. Sources in the fuel rods are estimated using the inventory code, ORIGEN2, and the dose rates at specified location of interest have been calculated using shielding code. The results are further discussed.|
|ISSN:||0975-1041 (Online); 0019-5596 (Print)|
|Appears in Collections:||IJPAP Vol.50(11) [November 2012]|
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