Baldwin TD and Hicks TW, Assessment Calculations for Human ...

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0977-6Version 1Dose (mSv)0.00100.00090.00080.00070.00060.00050.00040.00030.00020.00010.0000A & B10C & D11E & FFigure 6.33 Total dose to a worker during material recovery (C2) in the year 2310(Case A).0.00100.00090.0008Dose (mSv)0.00070.00060.00050.00040.00030.00020.00010.0000A & B10C & D11E & FFigure 6.34 Total dose to a worker during material recovery (C2) in the year 7000(Case A).Galson Sciences Ltd 42 21 March 2011
0977-6Version 16.1.9 SummaryCalculated maximum doses for each human intrusion event are summarised in Table6.2 and Table 6.3 for inventory Case A. Table 6.2 shows results for the short durationintrusion events. Table 6.3 shows calculated maximum annual doses for long termactivities.Table 6.2Summary maximum calculated doses for short-duration intrusionevents for 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 andinhalationDominantradionuclide(s)239 Pu and 240 Pu94 Nb and 239 PuInhalation239 Pu and 240 PuExternalirradiation andinhalation94 Nb, 239 Pu and240 PuExternalirradiation andinhalation94 Nb, 239 Pu and240 PuTable 6.3Summary maximum calculated doses for longer-term intrusionactivities for 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 andgoat’s milk)Dominantradionuclide(s)222 Rn (from decay of226 Ra and 234 U)14 C and 36 ClExternal irradiation andinhalation94 Nb, 240 Pu and 239 PuGalson Sciences Ltd 43 21 March 2011
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