Uranium series ICRP 68 dose coefficients for workers

(last updated 7 Feb 2003)

Contents: U-238 series · U-235 series


U-238 series

Effective dose coefficients [Sv/Bq]
Inhalation einh(50) for 1 Ám AMAD Ingestion eing(50)
F M S
U-238 4.9e-07 2.6e-06 7.3e-06 4.4e-08 1) 7.6e-09 2)
Th-234 6.3e-09 7.3e-09 3.4e-09
Pa-234m
U-234 5.5e-07 3.1e-06 8.5e-06 4.9e-08 1) 8.3e-09 2)
Th-230 4.0e-05 1.3e-05 2.1e-07 1) 8.7e-08 3)
Ra-226 3.2e-06 2.8e-07
Rn-222
Po-218
Pb-214 2.9e-09 1.4e-10
Bi-214 7.2e-09 1.4e-08 1.1e-10
Po-214
Pb-210 8.9e-07 6.8e-07
Bi-210 1.1e-09 8.4e-08 1.3e-09
Po-210 6.0e-07 3.0e-06 2.4e-07

1) unspecified compounds
2) most tetravalent compounds, e.g. UO2, U3O8, UF4
3) oxides and hydroxides
Inhalation dose coefficient for Ra-226 from ICRP 72 Annexe B


U-235 series

Effective dose coefficients [Sv/Bq]
Inhalation einh(50) for 1 Ám AMAD Ingestion eing(50)
F M S
U-235 5.1e-07 2.8e-06 7.7e-06 4.6e-08 1) 8.3e-09 2)
Th-231 2.9e-10 3.2e-10 3.4e-10
Pa-231 1.3e-04 3.2e-05 7.1e-07
Ac-227 5.4e-04 2.1e-04 6.6e-05 1.1e-06
Th-227 7.8e-06 9.6e-06 8.9e-09 1) 8.4e-09 3)
Ra-223 6.9e-06 1.0e-07
Rn-219
Po-215
Pb-211 3.9e-09 1.8e-10
Bi-211
Tl-207
1) unspecified compounds
2) most tetravalent compounds, e.g. UO2, U3O8, UF4
3) oxides and hydroxides

Source: IAEA RasaNet


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