Baldwin TD and Hicks TW, Assessment Calculations for Human ...
Baldwin TD and Hicks TW, Assessment Calculations for Human ...
Baldwin TD and Hicks TW, Assessment Calculations for Human ...
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0977-6Version 16.1.9 SummaryCalculated maximum doses <strong>for</strong> each human intrusion event are summarised in Table6.2 <strong>and</strong> Table 6.3 <strong>for</strong> inventory Case A. Table 6.2 shows results <strong>for</strong> the short durationintrusion events. Table 6.3 shows calculated maximum annual doses <strong>for</strong> long termactivities.Table 6.2Summary maximum calculated doses <strong>for</strong> short-duration intrusionevents <strong>for</strong> inventory Case A.Case AMaximumdose (mSv)Location(cells)Time ofmaximum(year)B1aDrilling(5 boreholes)B1bTrial pit(20excavations)B1cLaboratoryanalysis(25 samples)B3aConstructionC2Materialrecovery7.2 x 10 -4 3.0 x 10 -4 5.9 x 10 -4 3.0 x 10 -3 9.9 x 10 -4Vault 15(C10)Vault 20 (E11) Vault 15(C10)Vault 20 (E11)Vault 20 (E11)2230 2230 2230 2230 2310Key pathway Inhalation Externalirradiation <strong>and</strong>inhalationDominantradionuclide(s)239 Pu <strong>and</strong> 240 Pu94 Nb <strong>and</strong> 239 PuInhalation239 Pu <strong>and</strong> 240 PuExternalirradiation <strong>and</strong>inhalation94 Nb, 239 Pu <strong>and</strong>240 PuExternalirradiation <strong>and</strong>inhalation94 Nb, 239 Pu <strong>and</strong>240 PuTable 6.3Summary maximum calculated doses <strong>for</strong> longer-term intrusionactivities <strong>for</strong> inventory Case A.Case AMaximum annual dose(mSv)B3bHouse occupancyB7SmallholdingC1Scavenging0.26 5.4 1.2 x 10 -3Location (cells) Vault 15 (C10) Vault 17 (E10) Vault 20 (E11)Time of maximum(year)2230 2230 2310Key pathway Radon Ingestion (plants <strong>and</strong>goat’s milk)Dominantradionuclide(s)222 Rn (from decay of226 Ra <strong>and</strong> 234 U)14 C <strong>and</strong> 36 ClExternal irradiation <strong>and</strong>inhalation94 Nb, 240 Pu <strong>and</strong> 239 PuGalson Sciences Ltd 43 21 March 2011
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