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Environmental and Workplace Health

Recommendations on Dose Coefficients for Assessing
Doses From Accidental Radionuclide Releases to the Environment

Table of Contents

Appendix C: Compilation Of External Dose Rate Coefficients For Cloudshine And Groundshine

This Appendix is available in electronic format as an ASCII, (space-delimited)

Reference:

  • ICRP (1996) for noble gases.
    Eckerman and Legett (1996) for particulates (reproduced with permission).

Application Notes:

External dose coefficients apply to the age groups from 5 Years to Adult. For 3 Month and 1 Year age groups, multiply values by 1.5 (default correction factor).

External Dose Coefficients - Noble Gases
Radionuclide Half-life Cloudshine
(Svs-1Bq-1m3)		 Groundshine
(Svs-1Bq-1m2)

Argon

Ar-37

35.0 d

4.75e-20

 -

Ar-39

269 y

1.27e-16

 -

Ar-41

1.83 h

6.13e-14

 -

Krypton

Kr-74

11.5 min

5.21e-14

 -

Kr-76

14.8 h

1.85e-14

 -

Kr-77

74.7 min

4.51e-14

 -

Kr-79

1.46 d

1.12e-14

 -

Kr-81

2.10E+05 y

2.43e-16

 -

Kr-83m

1.83 h

2.43e-18

 -

Kr-85

10.7 y

2.55e-16

 -

Kr-85m

4.48 h

6.83e-15

 -

Kr-87

1.27 h

3.94e-14

 -

Kr-88

2.84 h

9.72e-14

 -

Xenon

Xe-120

40.0 min

1.74e-14

 -

Xe-121

40.1 min

8.68e-14

 -

Xe-122

20.1 h

2.20e-15

 -

Xe-123

2.08 h

2.78e-14

 -

Xe-125

17.0 h

1.08e-14

 -

Xe-127

36.4 d

1.12e-14

 -

Xe-129m

8.0 d

9.38e-16

 -

Xe-131m

11.9 d

3.70e-16

 -

Xe-133m

2.19 d

1.27e-15

 -

Xe-133

5.24 d

1.39e-15

 -

Xe-135m

15.3 min

1.85e-14

 -

Xe-135

9.10 h

1.11e-14

 -

Xe-138

14.2 min

5.44e-14

 -

 

External Dose Coefficients - Particulates
Radionuclide Half-life Cloudshine
(Svs-1Bq-1m3)		 Groundshine
(Svs-1Bq-1m2)

Hydrogen

H-3

12.3 y

0.00e+00

0.00e+00

Beryllium

Be-7

53.3 d

2.19e-15

4.72e-17

Be-10

1.60E+06 y

1.38e-16

3.41e-18

Carbon

C-11

0.340 h

4.56e-14

1.01e-15

C-14

5.73E+03 y

2.60e-18

1.27e-20

Fluorine

F-18

1.83 h

4.56e-14

9.82e-16

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Sodium

Na-22

2.60 y

1.02e-13

2.05e-15

Na-24

15.0 h

2.08e-13

3.59e-15

Magnesium

Mg-28

20.9 h

6.38e-14

1.26e-15

Aluminum

Al-26

7.16E+05 y

1.28e-13

2.47e-15

Al-28

2.24 min

8.87e-14

1.71e-15

Silicon

Si-31

2.62 h

4.83e-16

7.14e-17

Si-32

4.50E+02 y

8.68e-18

2.50e-20

Phosphorus

P-30

2.499 min

4.68e-14

1.13e-15

P-32

14.3 d

5.36e-16

8.52e-17

P-33

25.4 d

1.45e-17

3.64e-20

Sulphur

S-35

87.4 d

3.11e-18

1.33e-20

Chlorine

Cl-36

3.01E+05 y

1.66e-16

1.12e-17

Cl-38

0.620 h

7.58e-14

1.43e-15

Cl-39

0.927 h

6.90e-14

1.41e-15

Potassium

K-38

7.636 min

1.56e-13

2.97e-15

K-40

1.28E+09 y

7.92e-15

2.04e-16

K-42

12.4 h

1.48e-14

3.98e-16

K-43

22.6 h

4.35e-14

9.41e-16

K-44

0.369 h

1.14e-13

2.12e-15

K-45

0.333 h

9.20e-14

1.76e-15

Calcium

Ca-41

1.40E+05 y

0.00e+00

0.00e+00

Ca-45

163 d

1.53e-17

3.77e-20

Ca-47

4.53 d

5.06e-14

1.00e-15

Ca-49

8.716 min

1.66e-13

2.67e-15

Scandium

Sc-43

3.89 h

4.88e-14

1.07e-15

Sc-44

3.93 h

9.87e-14

2.08e-15

Sc-44m

2.44 d

1.24e-14

2.62e-16

Sc-46

83.8 d

9.36e-14

1.88e-15

Sc-47

3.35 d

4.67e-15

9.97e-17

Sc-48

1.82 d

1.57e-13

3.11e-15

Sc-49

0.956 h

7.16e-16

1.02e-16

Titanium

Ti-44

47.3 y

4.70e-15

1.18e-16

Ti-45

3.08 h

3.89e-14

8.66e-16

Vanadium

V-47

0.543 h

4.49e-14

1.05e-15

V-48

16.2 d

1.36e-13

2.72e-15

V-49

330 d

0.00e+00

0.00e+00

Chromium

Cr-48

23.0 h

1.87e-14

4.04e-16

Cr-49

0.702 h

4.68e-14

1.07e-15

Cr-51

27.7 d

1.38e-15

2.97e-17

Manganese

Mn-51

0.770 h

4.51e-14

1.07e-15

Mn-52

5.59 d

1.62e-13

3.22e-15

Mn-52m

0.352 h

1.13e-13

2.36e-15

Mn-53

3.70E+06 y

0.00e+00

0.00e+00

Mn-54

312 d

3.83e-14

7.91e-16

Mn-56

2.58 h

8.16e-14

1.62e-15

Iron

Fe-52

8.28 h

3.27e-14

7.11e-16

Fe-55

2.70 y

0.00e+00

0.00e+00

Fe-59

44.5 d

5.62e-14

1.10e-15

Fe-60

1.00E+05 y

1.79e-18

1.17e-20

Cobalt

Co-55

17.5 h

9.16e-14

1.93e-15

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Cobalt

Co-56

78.7 d

1.73e-13

3.23e-15

Co-57

271 d

4.97e-15

1.08e-16

Co-58

70.8 d

4.44e-14

9.25e-16

Co-58m

9.15 h

6.06e-20

6.65e-21

Co-60

5.27 y

1.19e-13

2.30e-15

Co-60m

0.174 h

2.00e-16

4.38e-18

Co-61

1.65 h

3.74e-15

1.29e-16

Co-62m

0.232 h

1.30e-13

2.58e-15

Nickel

Ni-56

6.10 d

7.82e-14

1.62e-15

Ni-57

1.50 d

9.12e-14

1.76e-15

Ni-59

7.50E+04 y

0.00e+00

0.00e+00

Ni-63

96.0 y

0.00e+00

0.00e+00

Ni-65

2.52 h

2.67e-14

5.69e-16

Ni -66

2.27 d

1.06e-17

2.83e-20

Copper

Cu-60

0.387 h

1.87e-13

3.64e-15

Cu-61

3.41 h

3.72e-14

8.21e-16

Cu-62

9.74 min

4.60e-14

1.11e-15

Cu-64

12.7 h

8.50e-15

1.83e-16

Cu-66

5.10 min

4.89e-15

2.03e-16

Cu-67

2.58 d

4.90e-15

1.05e-16

Zinc

Zn-62

9.26 h

1.92e-14

4.15e-16

Zn-63

0.635 h

5.00e-14

1.16e-15

Zn-65

244 d

2.72e-14

5.41e-16

Zn-69

0.950 h

1.99e-16

2.08e-17

Zn-69m

13.8 h

1.84e-14

3.98e-16

Zn-71m

3.92 h

6.99e-14

1.54e-15

Zn-72

1.94 d

6.17e-15

1.34e-16

Gallium

Ga-65

0.253 h

5.28e-14

1.21e-15

Ga-66

9.40 h

1.23e-13

2.25e-15

Ga-67

3.26 d

6.49e-15

1.41e-16

Ga-68

1.13 h

4.29e-14

9.99e-16

Ga-70

0.353 h

8.40e-16

8.48e-17

Ga-72

14.1 h

1.31e-13

2.48e-15

Ga-73

4.91 h

1.39e-14

3.35e-16

Germanium

Ge-66

2.27 h

3.00e-14

6.50e-16

Ge-67

0.312 h

6.45e-14

1.46e-15

Ge-68

288 d

1.01e-19

4.10e-20

Ge-69

1.63 d

3.99e-14

8.39e-16

Ge-71

11.8 d

1.02e-19

4.15e-20

Ge-75

1.38 h

1.78e-15

7.20e-17

Ge-77

11.3 h

4.98e-14

1.09e-15

Ge-78

1.45 h

1.23e-14

2.67e-16

Arsenic

As-69

0.253 h

4.61e-14

1.11e-15

As-70

0.876 h

1.92e-13

3.90e-15

As-71

2.70 d

2.53e-14

5.42e-16

As-72

1.08 d

8.26e-14

1.81e-15

As-73

80.3 d

1.55e-16

5.18e-18

As-74

17.8 d

3.40e-14

7.47e-16

As-76

1.10 d

2.06e-14

5.24e-16

As-77

1.62 d

5.09e-16

1.41e-17

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Arsenic

As-78

1.51 h

6.03e-14

1.29e-15

Selenium

Se-70

0.683 h

4.40e-14

9.98e-16

Se-73

7.15 h

4.78e-14

1.07e-15

Se-73m

0.650 h

1.09e-14

2.52e-16

Se-75

120 d

1.68e-14

3.61e-16

Se-77m

17.45 s

3.63e-15

7.77e-17

Se-79

6.50E+04 y

3.94e-18

1.64e-20

Se-81

0.308 h

8.69e-16

8.14e-17

Se-81m

0.954 h

5.48e-16

1.26e-17

Se-83

0.375 h

1.14e-13

2.29e-15

Bromine

Br-74

0.422 h

2.26e-13

4.05e-15

Br-74m

0.691 h

1.96e-13

3.82e-15

Br-75

1.63 h

5.43e-14

1.22e-15

Br-76

16.2 h

1.26e-13

2.44e-15

Br-77

2.33 d

1.40e-14

2.99e-16

Br-80

0.290 h

3.73e-15

1.04e-16

Br-80m

4.42 h

2.37e-16

1.37e-17

Br-82

1.47 d

1.21e-13

2.48e-15

Br-83

2.39 h

5.34e-16

2.86e-17

Br-84

0.530 h

9.02e-14

1.67e-15

Rubidium

Rb-79

0.382 h

6.08e-14

1.38e-15

Rb-80

34 s

5.77e-14

1.38e-15

Rb-81

4.58 h

2.73e-14

5.98e-16

Rb-81m

0.533 h

1.63e-16

4.91e-18

Rb-82

1.3 min

5.01e-14

1.20e-15

Rb-82m

6.20 h

1.34e-13

2.74e-15

Rb-83

86.2 d

2.21e-14

4.76e-16

Rb-84

32.8 d

4.18e-14

8.74e-16

Rb-86

18.7 d

4.94e-15

1.67e-16

Rb-87

4.70E+10 y

3.30e-17

7.30e-20

Rb-88

0.297 h

3.33e-14

7.41e-16

Rb-89

0.253 h

1.01e-13

1.97e-15

Strontium

Sr-80

1.67 h

5.00e-18

1.60e-18

Sr-81

0.425 h

6.24e-14

1.43e-15

Sr-82

25.0 d

4.92e-18

1.57e-18

Sr-83

1.35 d

3.60e-14

7.61e-16

Sr-85

64.8 d

2.24e-14

4.84e-16

Sr-85m

1.16 h

9.48e-15

2.02e-16

Sr-87m

2.80 h

1.41e-14

3.04e-16

Sr-89

50.5 d

4.37e-16

6.86e-17

Sr-90

29.1 y

9.83e-17

1.64e-18

Sr-91

9.50 h

3.27e-14

7.27e-16

Sr-92

2.71 h

6.41e-14

1.23e-15

Yittrium

Y-86

14.7 h

1.69e-13

3.33e-15

Y-86m

0.800 h

9.59e-15

2.04e-16

Y-87

3.35 d

1.99e-14

4.31e-16

Y-88

107 d

1.30e-13

2.41e-15

Y-90

2.67 d

7.92e-16

1.10e-16

Y-90m

3.19 h

2.77e-14

5.97e-16

Y-91

58.5 d

6.22e-16

7.46e-17

Top of Page
External Dose Coefficients new
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Yittrium

Y-91m

0.828 h

2.37e-14

5.10e-16

Y-92

3.54 h

1.32e-14

3.83e-16

Y-93

10.1 h

5.28e-15

2.10e-16

Y-94

0.318 h

5.39e-14

1.19e-15

Y-95

0.178 h

4.66e-14

9.10e-16

Zirconium

Zr-86

16.5 h

1.17e-14

2.56e-16

Zr-88

83.4 d

1.73e-14

3.77e-16

Zr-89

3.27 d

5.31e-14

1.10e-15

Zr-93

1.53E+06 y

0.00e+00

0.00e+00

Zr-95

64.0 d

3.36e-14

7.04e-16

Zr-97

16.9 h

8.90e-15

2.50e-16

Niobium

Nb-88

0.238 h

1.89e-13

4.02e-15

Nb-89

2.03 h

6.62e-14

1.39e-15

Nb-89m

1.10 h

8.65e-14

1.94e-15

Nb-90

14.6 h

2.05e-13

3.79e-15

Nb-93m

13.6 y

3.05e-18

6.82e-19

Nb-94

2.03E+04 y

7.20e-14

1.49e-15

Nb-95

35.1 d

3.49e-14

7.28e-16

Nb-95m

3.61 d

2.74e-15

5.91e-17

Nb-96

23.3 h

1.14e-13

2.34e-15

Nb-97

1.20 h

2.99e-14

6.75e-16

Nb-97m

60 s

3.31e-14

6.95e-16

Nb-98

0.858 h

1.14e-13

2.37e-15

Molybdenum

Mo-90

5.67 h

3.64e-14

7.78e-16

Mo-93

3.50E+03 y

1.73e-17

3.88e-18

Mo-93m

6.85 h

1.06e-13

2.07e-15

Mo-99

2.75 d

6.99e-15

1.78e-16

Mo-101

0.244 h

6.48e-14

1.31e-15

Technetium

Tc-93

2.75 h

6.96e-14

1.32e-15

Tc-93m

0.725 h

3.53e-14

6.30e-16

Tc-94

4.88 h

1.22e-13

2.53e-15

Tc-94m

0.867 h

8.64e-14

1.82e-15

Tc-95

20.0 h

3.58e-14

7.50e-16

Tc-95m

61.0 d

2.99e-14

6.32e-16

Tc-96

4.28 d

1.14e-13

2.37e-15

Tc-96m

0.858 h

2.09e-15

4.50e-17

Tc-97

2.60E+06 y

2.26e-17

4.65e-18

Tc-97m

87.0 d

3.72e-17

4.45e-18

Tc-98

4.20E+06 y

6.41e-14

1.35e-15

Tc-99

2.13E+05 y

2.87e-17

6.47e-20

Tc-99m

6.02 h

5.25e-15

1.14e-16

Tc-101

0.237 h

1.50e-14

3.65e-16

Tc-104

0.303 h

9.61e-14

1.95e-15

Ruthenium

Ru-94

0.863 h

2.36e-14

5.00e-16

Ru-97

2.90 d

9.91e-15

2.16e-16

Ru-103

39.3 d

2.08e-14

4.49e-16

Ru-105

4.44 h

3.56e-14

7.82e-16

Ru-106

1.01 y

0.00e+00

0.00e+00

Rhodium

Rh-99

16.0 d

2.63e-14

5.66e-16

Rh-99m

4.70 h

3.06e-14

6.39e-16

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Svs-1Bq-1m3)		 Groundshine
(Svs-1Bq-1m2)

Rhodium

Rh-100

20.8 h

1.33e-13

2.49e-15

Rh-101

3.20 y

1.09e-14

2.40e-16

Rh-101m

4.34 d

1.29e-14

2.83e-16

Rh-102

2.90 y

9.68e-14

2.02e-15

Rh-102m

207 d

2.15e-14

4.77e-16

Rh-103m

0.935 h

6.02e-18

8.86e-19

Rh-105

1.47 d

3.47e-15

7.42e-17

Rh-106

29.9 s

1.06e-14

3.45e-16

Rh-106m

2.20 h

1.35e-13

2.75e-15

Rh-107

0.362 h

1.41e-14

3.38e-16

Palladium

Pd-100

3.63 d

3.98e-15

1.06e-16

Pd-101

8.27 h

1.42e-14

3.09e-16

Pd-103

17.0 d

5.32e-17

7.67e-18

Pd-107

6.50E+06 y

0.00e+00

0.00e+00

Pd-109

13.4 h

4.20e-16

3.73e-17

Silver

Ag-102

0.215 h

1.57e-13

3.19e-15

Ag-103

1.09 h

3.43e-14

7.45e-16

Ag-104

1.15 h

1.23e-13

2.52e-15

Ag-104m

0.558 h

5.48e-14

1.14e-15

Ag-105

41.0 d

2.26e-14

4.90e-16

Ag-106

0.399 h

3.18e-14

7.41e-16

Ag-106m

8.41 d

1.29e-13

2.64e-15

Ag-108

2.37 min

1.25e-15

8.96e-17

Ag-108m

1.27E+02 y

7.24e-14

1.55e-15

Ag-109m

39.6 s

1.59e-16

7.52e-18

Ag-110

24.6 s

2.46e-15

1.63e-16

Ag-110m

250 d

1.27e-13

2.58e-15

Ag-111

7.45 d

1.38e-15

5.28e-17

Ag-112

3.12 h

3.23e-14

7.46e-16

Ag-115

0.333 h

3.46e-14

7.50e-16

Cadmium

Cd-104

0.961 h

1.04e-14

2.36e-16

Cd-107

6.49 h

5.11e-16

2.33e-17

Cd-109

1.27 y

2.28e-16

1.66e-17

Cd-113

9.30E+15 y

2.53e-17

5.80e-20

Cd-113m

13.6 y

9.06e-17

1.77e-18

Cd-115

2.23 d

1.05e-14

2.43e-16

Cd-115m

44.6 d

1.48e-15

9.24e-17

Cd-117

2.49 h

5.14e-14

1.04e-15

Cd-117m

3.36 h

9.89e-14

1.85e-15

Indium

In-109

4.20 h

2.98e-14

6.24e-16

In-110

4.90 h

1.39e-13

2.88e-15

In-110m

1.15 h

7.15e-14

1.53e-15

In-111

2.83 d

1.68e-14

3.68e-16

In-112

0.240 h

1.19e-14

2.74e-16

In-113m

1.66 h

1.12e-14

2.43e-16

In-114

71.9 s

1.59e-16

2.76e-18

In-114m

49.5 d

3.89e-15

8.63e-17

In-115

5.10E+15 y

6.55e-17

3.57e-19

In-115m

4.49 h

6.86e-15</ p>

1.51e-16

In-116m

0.902 h

1.18e-13

2.28e-15

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Indium

In-117

0.730 h

3.06e-14

6.64e-16

In-117m

1.94 h

4.07e-15

1.25e-16

In-119

2.4 min

3.53e-14

8.02e-16

ln-119m

0.300 h

1.26e-15

1.30e-16

Tin

Sn-110

4.00 h

1.25e-14

2.77e-16

Sn-111

0.588 h

2.30e-14

5.01e-16

Sn-113

115 d

3.15e-16

1.63e-17

Sn-117m

13.6 d

6.11e-15

1.40e-16

Sn-119m

293 d

7.04e-17

7.47e-18

Sn-121

1.13 d

3.90e-17

8.84e-20

Sn-121m

55.0 y

5.24e-17

3.60e-18

Sn-123

129 d

6.98e-16

6.50e-17

Sn-123m

0.668 h

6.14e-15

1.73e-16

Sn-125

9.64 d

1.54e-14

3.82e-16

Sn-126

1.00E+05 y

1.84e-15

4.82e-17

Sn-127

2.10 h

9.03e-14

1.80e-15

Sn-128

0.985 h

2.77e-14

6.25e-16

Antimony

Sb-115

0.530 h

4.02e-14

8.93e-16

Sb-116

0.263 h

1.02e-13

2.03e-15

Sb-116m

1.00 h

1.45e-13

2.93e-15

Sb-117

2.80 h

7.15e-15

1.65e-16

Sb-118m

5.00 h

1.19e-13

2.39e-15

Sb-119

1.59 d

1.50e-16

1.56e-17

Sb-120

5.76 d

1.14e-13

2.28e-15

Sb-120

0.265 h

2.00e-14

4.67e-16

Sb-122

2.70 d

2.02e-14

4.85e-16

Sb-124

60.2 d

8.62e-14

1.70e-15

Sb-124m

0.337 h

4.67e-19

5.07e-20

Sb-125

2.77 y

1.87e-14

4.09e-16

Sb-126

12.4 d

1.28e-13

2.72e-15

Sb-126m

0.317 h

7.01e-14

1.55e-15

Sb-127

3.85 d

3.12e-14

6.76e-16

Sb-128

9.01 h

1.41e-13

2.98e-15

Sb-128m

0.173 h

9.08e-14

1.99e-15

Sb-129

4.32 h

6.71e-14

1.37e-15

Sb-130

0.667 h

1.50e-13

3.14e-15

Sb-131

0.383 h

8.84e-14

1.77e-15

Tellurium

Te-116

2.49 h

1.98e-15

6.06e-17

Te-121

17.0 d

2.50e-14

5.47e-16

Te-121m

154 d

8.99e-15

1.98e-16

Te-123

1.00E+13 y

1.51e-16

1.42e-17

Te-123m

120 d

5.81e-15

1.32e-16

Te-125m

58.0 d

3.35e-16

2.66e-17

Te-127

9.35 h

3.34e-16

1.03e-17

Te-127m

109 d

1.12e-16

8.56e-18

Te-129

1.16 h

2.86e-15

1.14e-16

Te-129m

33.6 d

1.56e-15

5.70e-17

Te-131

0.417 h

1.92e-14

4.74e-16

Te-131m

1.25 d

6.55e-14

1.34e-15

Te-132

3.26 d

9.32e-15

2.12e-16

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Tellurium

Te-133

0.207 h

4.34e-14

9.59e-16

Te-133m

0.923 h

1.07e-13

2.24e-15

Te-134

0.696 h

3.94e-14

8.48e-16

Iodine

I-120

1.35 h

1.31e-13

2.62e-15

I-120m

0.883 h

2.49e-13

5.01e-15

I-121

2.12 h

1.78e-14

3.96e-16

I-122

3.62 min

4.31e-14

1.02e-15

I-123

13.2 h

6.49e-15

1.53e-16

I-124

4.18 d

5.04e-14

1.04e-15

I-125

60.1 d

3.73e-16

3.14e-17

I-126

13.0 d

2.01e-14

4.42e-16

I-128

0.416 h

4.33e-15

1.71e-16

I-129

1.57E+07 y

2.81e-16

1.95e-17

I-130

12.4 h

9.67e-14

2.05e-15

I-131

8.04 d

1.69e-14

3.64e-16

I-132

2.30 h

1.05e-13

2.20e-15

I-132m

1.39 h

1.42e-14

3.11e-16

I-133

20.8 h

2.76e-14

6.17e-16

I-134

0.876 h

1.22e-13

2.53e-15

I-135

6.61 h

7.54e-14

1.47e-15

Caesium

Cs-125

0.750 h

3.01e-14

6.85e-16

Cs-126

1.64 min

4.96e-14

1.18e-15

Cs-127

6.25 h

1.78e-14

3.95e-16

Cs-128

3.9 min

4.06e-14

9.54e-16

Cs-129

1.34 d

1.13e-14

2.62e-16

Cs-130

0.498 h

2.30e-14

5.41e-16

Cs-131

9.69 d

2.38e-16

1.79e-17

Cs-132

6.48 d

3.11e-14

6.69e-16

Cs-134

2.06 y

7.06e-14

1.48e-15

Cs-134m

2.90 h

7.95e-16

2.25e-17

Cs-135

2.30E+06 y

9.50e-18

2.69e-20

Cs-135m

0.883 h

7.25e-14

1.51e-15

Cs-136

13.1 d

9.94e-14

2.03e-15

Cs-137

30.0 y

9.28e-17

2.99e-18

Cs-138

0.536 h

1.15e-13

2.26e-15

Barium

Ba-126

1.61 h

6.41e-15

1.51e-16

Ba-128

2.43 d

2.54e-15

6.78e-17

Ba-131

11.8 d

1.92e-14

4.29e-16

Ba-131m

0.243 h

2.64e-15

6.70e-17

Ba-133

10.7 y

1.62e-14

3.73e-16

Ba-133m

1.62 d

2.44e-15

5.97e-17

Ba-135m

1.20 d

2.16e-15

5.38e-17

Ba-137m

2.552 min

2.69e-14

5.79e-16

Ba-139

1.38 h

2.54e-15

1.46e-16

Ba-140

12.7 d

8.07e-15

1.90e-16

Ba-141

0.305 h

3.92e-14

8.86e-16

Ba-142

0.177 h

4.84e-14

1.01e-15

Lanthanum

La-131

0.983 h

2.91e-14

6.55e-16

La-132

4.80 h

9.41e-14

1.90e-15

La-134

6.67 min

3.15e-14

7.50e-16

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Lanthanum

La-135

19.5 h

7.75e-16

3.04e-17

La-137

6.00E+04 y

3.00e-16

1.96e-17

La-138

1.35E+11 y

5.84e-14

1.13e-15

La-140

1.68 d

1.11e-13

2.16e-15

La-141

3.93 h

2.88e-15

1.52e-16

La-142

1.54 h

1.37e-13

2.49e-15

La-143

0.237 h

5.78e-15

2.27e-16

Cerium

Ce-134

3.00 d

3.52e-16

2.15e-17

Ce-135

17.6 h

7.93e-14

1.70e-15

Ce-137

9.00 h

7.30e-16

2.98e-17

Ce-137m

1.43 d

1.83e-15

4.72e-17

Ce-139

138 d

5.97e-15

1.43e-16

Ce-141

32.5 d

3.10e-15

6.93e-17

Ce-143

1.38 d

1.21e-14

3.01e-16

Ce-144

284 d

7.63e-16

1.84e-17

Praseodymium

Pr-136

0.218 h

9.72e-14

2.04e-15

Pr-137

1.28 h

2.20e-14

4.97e-16

Pr-138

1.45 min

3.72e-14

8.98e-16

Pr-138m

2.10 h

1.13e-13

2.35e-15

Pr-139

4.51 h

4.75e-15

1.17e-16

Pr-142

19.1 h

3.50e-15

1.47e-16

Pr-142m

0.243 h

0.00e+00

0.00e+00

Pr-143

13.6 d

1.94e-16

2.06e-17

Pr-144

0.288 h

2.65e-15

1.63e-16

Pr-144m

7.2 min

2.20e-16

1.05e-17

Pr-145

5.98 h

1.12e-15

9.38e-17

Pr-147

0.227 h

3.90e-14

8.95e-16

Neodymium

Nd-136

0.844 h

1.15e-14

2.73e-16

Nd-138

5.04 h

1.07e-15

3.75e-17

Nd-139

0.495 h

1.77e-14

4.07e-16

Nd-139m

5.50 h

7.12e-14

1.48e-15

Nd-141

2.49 h

2.59e-15

6.84e-17

Nd-141m

62.4 s

3.45e-14

7.32e-16

Nd-147

11.0 d

5.72e-15

1.40e-16

Nd-149

1.73 h

1.68e-14

4.06e-16

Nd-151

0.207 h

4.21e-14

9.23e-16

Promethium

Pm-141

0.348 h

3.39e-14

7.73e-16

Pm-142

40.5 s

4.01e-14

9.62e-16

Pm-143

265 d

1.35e-14

2.97e-16

Pm-144

363 d

6.95e-14

1.49e-15

Pm-145

17.7 y

5.49e-16

2.61e-17

Pm-146

5.53 y

3.34e-14

7.19e-16

Pm-147

2.62 y

8.67e-18

2.80e-20

Pm-148

5.37 d

2.76e-14

6.11e-16

Pm-148m

41.3 d

9.01e-14

1.91e-15

Pm-149

2.21 d

7.08e-16

4.04e-17

Pm-150

2.68 h

6.77e-14

1.41e-15

Pm-151

1.18 d

1.40e-14

3.18e-16

Samarium

Sm-141

0.170 h

6.44e-14

1.39e-15

Sm-141m

0.377 h

9.07e-14

1.89e-15

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Samarium

Sm-142

1.21 h

3.43e-15

8.95e-17

Sm-145

340 d

1.26e-15

5.56e-17

Sm-146

1.03E+08 y

0.00e+00

0.00e+00

Sm-147

1.06E+11 y

0.00e+00

0.00e+00

Sm-151

90.0 y

2.46e-20

3.54e-21

Sm-153

1.95 d

2.04e-15

6.10e-17

Sm-155

0.368 h

4.43e-15

1.56e-16

Sm-156

9.40 h

4.93e-15

1.12e-16

Europium

Eu-145

5.94 d

6.78e-14

1.34e-15

Eu-146

4.61 d

1.15e-13

2.35e-15

Eu-147

24.0 d

2.14e-14

4.62e-16

Eu-148

54.5 d

9.83e-14

2.06e-15

Eu-149

93.1 d

1.95e-15

5.66e-17

Eu-150

34.2 y

6.64e-14

1.42e-15

Eu-150m

12.6 h

2.22e-15

6.78e-17

Eu-152

13.3 y

5.28e-14

1.08e-15

Eu-152m

9.32 h

1.36e-14

3.35e-16

Eu-154

8.80 y

5.75e-14

1.17e-15

Eu-155

4.96 y

2.14e-15

5.35e-17

Eu-156

15.2 d

6.38e-14

1.24e-15

Eu-157

15.1 h

1.09e-14

2.76e-16

Eu-158

0.765 h

5.00e-14

1.08e-15

Gadolinium

Gd-145

0.382 h

1.09e-13

2.09e-15

Gd-146

48.3 d

8.61e-15

2.22e-16

Gd-147

1.59 d

5.98e-14

1.25e-15

Gd-148

93.0 y

0.00e+00

0.00e+00

Gd-149

9.40 d

1.75e-14

3.92e-16

Gd-151

120 d

1.88e-15

5.57e-17

Gd-152

1.08E+14 y

0.00e+00

0.00e+00

Gd-153

242 d

3.11e-15

9.22e-17

Gd-159

18.6 h

2.16e-15

6.48e-17

Terbium

Tb-147

1.65 h

7.29e-14

1.55e-15

Tb-149

4.15 h

7.51e-14

1.50e-15

Tb-150

3.27 h

7.75e-14

1.62e-15

Tb-151

17.6 h

3.87e-14

8.38e-16

Tb-153

2.34 d

8.86e-15

2.09e-16

Tb-154

21.4 h

1.14e-13

2.08e-15

Tb-155

5.32 d

4.84e-15

1.25e-16

Tb-156

5.34 d

8.34e-14

1.69e-15

Tb-156m

1.02 d

6.24e-16

2.21e-17

Tb-156n

5.00 h

9.73e-17

3.15e-18

Tb-157

1.50E+02 y

5.34e-17

2.20e-18

Tb-158

1.50E+02 y

3.58e-14

7.49e-16

Tb-160

72.3 d

5.19e-14

1.06e-15

Tb-161

6.91 d

8.93e-16

2.95e-17

Dysprosium

Dy-155

10.0 h

2.56e-14

5.38e-16

Dy-157

8.10 h

1.48e-14

3.33e-16

Dy-159

144 d

9.93e-16

3.87e-17

Dy-165

2.33 h

1.35e-15

6.91e-17

Dy-166

3.40 d

1.21e-15

3.51e-17

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Holmium

Ho-155

0.800 h

1.65e-14

3.89e-16

Ho-157

0.210 h

2.04e-14

4.61e-16

Ho-159

0.550 h

1.43e-14

3.34e-16

Ho-161

2.50 h

1.40e-15

5.14e-17

Ho-162

0.250 h

6.70e-15

1.55e-16

Ho-162m

1.13 h

2.54e-14

5.30e-16

Ho-164

0.483 h

8.03e-16

3.38e-17

Ho-164m

0.625 h

1.06e-15

3.90e-17

Ho-166

1.12 d

1.72e-15

1.05e-16

Ho-166m

1.20E+03 y

7.84e-14

1.65e-15

Ho-167

3.10 h

1.59e-14

3.51e-16

Erbium

Er-161

3.24 h

4.11e-14

8.55e-16

Er-165

10.4 h

8.96e-16

3.24e-17

Er-169

9.30 d

2.97e-17

6.75e-20

Er-171

7.52 h

1.64e-14

3.85e-16

Er-172

2.05 d

2.29e-14

4.96e-16

Thulium

Tm-162

0.362 h

8.50e-14

1.63e-15

Tm-166

7.70 h

8.78e-14

1.70e-15

Tm-167

9.24 d

5.39e-15

1.31e-16

Tm-170

129 d

3.67e-16

2.64e-17

Tm-171

1.92 y

1.77e-17

5.55e-19

Tm-172

2.65 d

2.30e-14

4.87e-16

Tm-173

8.24 h

1.72e-14

3.88e-16

Tm-175

0.253 h

4.81e-14

1.04e-15

Ytterbium

Yb-162

0.315 h

4.92e-15

1.22e-16

Yb-166

2.36 d

2.35e-15

7.44e-17

Yb-167

0.292 h

9.48e-15

2.37e-16

Yb-169

32.0 d

1.13e-14

2.78e-16

Yb-175

4.19 d

1.75e-15

3.74e-17

Yb-177

1.90 h

8.82e-15

2.17e-16

Yb-178

1.23 h

1.62e-15

3.60e-17

Lutetium

Lu-169

1.42 d

4.75e-14

9.56e-16

Lu-170

2.00 d

1.21e-13

2.19e-15

Lu-171

8.22 d

3.00e-14

6.54e-16

Lu-172

6.70 d

8.64e-14

1.76e-15

Lu-173

1.37 y

4.42e-15

1.16e-16

Lu-174

3.31 y

4.94e-15

1.12e-16

Lu-174m

142 d

1.84e-15

5.33e-17

Lu-176

3.60E+10 y

2.11e-14

4.57e-16

Lu-176m

3.68 h

7.65e-16

5.60e-17

Lu-177

6.71 d

1.50e-15

3.21e-17

Lu-177m

161 d

4.24e-14

9.31e-16

Lu-178

0.473 h

7.12e-15

2.15e-16

Lu-178m

0.378 h

4.80e-14

1.08e-15

Lu-179

4.59 h

1.66e-15

7.67e-17

Hafnium

Hf-170

16.0 h

2.29e-14

5.11e-16

Hf-172

1.87 y

3.40e-15

9.92e-17

Hf-173

24.0 h

1.66e-14

3.73e-16

Hf-175

70.0 d

1.54e-14

3.45e-16

Hf-177m

0.856 h

9.67e-14

2.10e-15

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Hafnium

Hf-178m

31.0 y

1.03e-13

2.22e-15

Hf-179m

25.1 d

3.84e-14

8.42e-16

Hf-180m

5.50 h

4.33e-14

9.46e-16

Hf-181

42.4 d

2.42e-14

5.25e-16

Hf-182

9.00E+06 y

1.03e-14

2.23e-16

Hf-182m

1.02 h

4.08e-14

8.78e-16

Hf-183

1.07 h

3.39e-14

7.52e-16

Hf-184

4.12 h

1.04e-14

2.46e-16

Tantalum

Ta-172

0.613 h

7.10e-14

1.49e-15

Ta-173

3.65 h

2.55e-14

5.75e-16

Ta-174

1.20 h

2.75e-14

6.15e-16

Ta-175

10.5 h

4.24e-14

8.49e-16

Ta-176

8.08 h

1.03e-13

1.93e-15

Ta-177

2.36 d

2.15e-15

5.87e-17

Ta-178

2.20 h

4.32e-14

9.53e-16

Ta-178m

9.31 min

4.12e-15

9.61e-17

Ta-179

1.82 y

9.00e-16

2.75e-17

Ta-180

1.00E+13 y

2.35e-14

5.18e-16

Ta-180m

8.10 h

1.43e-15

4.23e-17

Ta-182

115 d

5.99e-14

1.20e-15

Ta-182m

0.264 h

9.94e-15

2.25e-16

Ta-183

5.10 d

1.19e-14

2.68e-16

Ta-184

8.70 h

7.25e-14

1.55e-15

Ta-185

0.816 h

8.23e-15

2.50e-16

Ta-186

0.175 h

7.02e-14

1.58e-15

Tungsten

W-176

2.30 h

5.98e-15

1.54e-16

W-177

2.25 h

3.91e-14

8.38e-16

W-178

21.7 d

3.83e-16

1.14e-17

W-179

0.625 h

1.50e-15

4.98e-17

W-181

121 d

1.16e-15

3.44e-17

W-185

75.1 d

4.97e-17

1.71e-19

W-187

23.9 h

2.13e-14

4.68e-16

W-188

69.4 d

1.10e-16

1.82e-18

Rhenium

Re-177

0.233 h

2.76e-14

5.95e-16

Re-178

0.220 h

5.73e-14

1.15e-15

Re-180

2.43 min

5.33e-14

1.12e-15

Re-181

20.0 h

3.37e-14

7.20e-16

Re-182

2.67 d

8.49e-14

1.73e-15

Re-182m

12.7 h

5.39e-14

1.08e-15

Re-184

38.0 d

3.99e-14

8.37e-16

Re-184m

165 d

1.67e-14

3.59e-16

Re-186

3.78 d

9.97e-16

4.42e-17

Re-186m

2.00E+05 y

4.14e-16

1.28e-17

Re-187

5.00E+10 y

0.00e+00

0.00e+00

Re-188

17.0 h

3.13e-15

1.45e-16

Re-188m

0.310 h

2.56e-15

6.77e-17

Re-189

1.01 d

3.08e-15

8.41e-17

Osmium

Os-180

0.366 h

1.96e-15

5.39e-17

Os-181

1.75 h

5.52e-14

1.13e-15

Os-182

22.0 h

1.83e-14

4.06e-16

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Osmium

Os-185

94.0 d

3.18e-14

6.81e-16

Os-189m

6.00 h

1.24e-19

4.83e-20

Os-190m

9.9 min

7.03e-14

1.51e-15

Os-191

15.4 d

2.78e-15

6.75e-17

Os-191m

13.0 h

2.31e-16

6.40e-18

Os-193

1.25 d

3.29e-15

9.59e-17

Os-194

6.00 y

2.17e-17

9.55e-19

Iridium

Ir-182

0.250 h

6.07e-14

1.34e-15

Ir-184

3.02 h

8.75e-14

1.78e-15

Ir-185

14.0 h

2.74e-14

5.33e-16

Ir-186

15.8 h

7.51e-14

1.51e-15

Ir-186m

1.75 h

4.33e-14

9.16e-16

Ir-187

10.5 h

1.54e-14

3.37e-16

Ir-188

1.73 d

7.52e-14

1.42e-15

Ir-189

13.3 d

2.77e-15

6.99e-17

Ir-190

12.1 d

6.32e-14

1.36e-15

Ir-190m

3.10 h

6.81e-14

1.47e-15

Ir-190n

1.20 h

1.38e-19

5.32e-20

Ir-192

74.0 d

3.61e-14

7.77e-16

Ir-192m

2.41E+02 y

6.84e-15

1.47e-16

Ir-194

19.1 h

4.73e-15

1.81e-16

Ir-194m

171 d

1.04e-13

2.23e-15

Ir-195

2.50 h

2.17e-15

7.37e-17

Ir-195m

3.80 h

1.78e-14

3.98e-16

Platinum

Pt-186

2.00 h

3.27e-14

7.00e-16

Pt-188

10.2 d

7.90e-15

1.82e-16

Pt-189

10.9 h

1.34e-14

2.99e-16

Pt-191

2.80 d

1.21e-14

2.78e-16

Pt-193

50.0 y

4.07e-19

1.54e-19

Pt-193m

4.33 d

3.76e-16

9.31e-18

Pt-195m

4.02 d

2.44e-15

6.19e-17

Pt-197

18.3 h

9.73e-16

2.39e-17

Pt-197m

1.57 h

3.25e-15

7.28e-17

Pt-199

0.513 h

9.32e-15

2.47e-16

Pt-200

12.5 h

2.33e-15

5.46e-17

Gold

Au-193

17.6 h

6.03e-15

1.42e-16

Au-194

1.65 d

4.94e-14

9.72e-16

Au-195

183 d

2.73e-15

7.05e-17

Au-195m

30.5 s

8.52e-15

1.84e-16

Au-198

2.69 d

1.81e-14

4.07e-16

Au-198m

2.30 d

2.39e-14

5.23e-16

Au-199

3.14 d

3.67e-15

7.97e-17

Au-200

0.807 h

1.32e-14

3.37e-16

Au-200m

18.7 h

9.32e-14

1.98e-15

Au-201

0.440 h

2.62e-15

9.03e-17

Mercury

Hg-193

3.50 h

7.70e-15

1.80e-16

Hg-193m

11.1 h

4.69e-14

9.66e-16

Hg-194

2.60E+02 y

6.23e-19

2.24e-19

Hg-195

9.90 h

8.38e-15

1.85e-16

Hg-195m

1.73 d

8.78e-15

1.93e-16

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Mercury

Hg-197

2.67 d

2.26e-15

5.79e-17

Hg-197m

23.8 h

3.62e-15

8.12e-17

Hg-199m

0.710 h

7.63e-15

1.67e-16

Hg-203

46.6 d

1.04e-14

2.22e-16

Thallium

Tl-194

0.550 h

3.41e-14

7.35e-16

Tl-194m

0.546 h

1.03e-13

2.23e-15

Tl-195

1.16 h

5.94e-14

1.16e-15

Tl-197

2.84 h

1.78e-14

3.77e-16

Tl-198

5.30 h

9.47e-14

1.82e-15

Tl-198m

1.87 h

5.26e-14

1.13e-15

Tl-199

7.42 h

1.02e-14

2.27e-16

Tl-200

1.09 d

5.98e-14

1.22e-15

Tl-201

3.04 d

3.25e-15

7.96e-17

Tl-202

12.2 d

2.00e-14

4.40e-16

Tl-204

3.78 y

1.71e-16

1.08e-17

Tl-206

4.20 min

3.95e-16

6.07e-17

Tl-207

4.77 min

4.53e-16

5.56e-17

Tl-208

3.07 min

1.69e-13

2.97e-15

Tl-209

2.20 min

9.65e-14

1.92e-15

Lead

Pb-195m

0.263 h

7.12e-14

1.52e-15

Pb-198

2.40 h

1.86e-14

4.06e-16

Pb-199

1.50 h

6.83e-14

1.36e-15

Pb-200

21.5 h

8.17e-15

1.86e-16

Pb-201

9.40 h

3.35e-14

7.08e-16

Pb-202

3.00E+05 y

4.96e-19

1.91e-19

Pb-202m

3.62 h

9.29e-14

1.93e-15

Pb-203

2.17 d

1.30e-14

2.86e-16

Pb-205

1.43E+07 y

5.45e-19

2.08e-19

Pb-209

3.25 h

1.00e-16

3.19e-18

Pb-210

22.3 y

4.48e-17

2.13e-18

Pb-211

0.601 h

2.59e-15

9.50e-17

Pb-212

10.6 h

6.24e-15

1.35e-16

Pb-214

0.447 h

1.09e-14

2.40e-16

Bismuth

Bi-200

0.606 h

1.08e-13

2.26e-15

Bi-201

1.80 h

6.08e-14

1.28e-15

Bi-202

1.67 h

1.24e-13

2.54e-15

Bi-203

11.8 h

1.13e-13

2.18e-15

Bi-205

15.3 d

7.98e-14

1.54e-15

Bi-206

6.24 d

1.51e-13

3.06e-15

Bi-207

38.0 y

7.04e-14

1.45e-15

Bi-210

5.01 d

2.58e-16

3.51e-17

Bi-210m

3.00E+06 y

1.12e-14

2.40e-16

Bi-211

2.14 min

2.04e-15

4.40e-17

Bi-212

1.01 h

8.95e-15

2.25e-16

Bi-213

0.761 h

6.16e-15

1.68e-16

Bi-214

0.332 h

7.25e-14

1.44e-15

Polonium

Po-203

0.612 h

7.59e-14

1.53e-15

Po-205

1.80 h

7.29e-14

1.47e-15

Po-207

5.83 h

6.08e-14

1.24e-15

Po-210

138 d

3.89e-19

8.09e-21

Top of Page
External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Polonium

Po-218

3.05 min

4.21e-19

8.66e-21

Astantine

At-207

1.80 h

6.09e-14

1.22e-15

At-211

7.21 h

1.37e-15

3.32e-17

Francium

Fr-220

27.4 s

4.40e-16

9.87e-18

Fr-221

4.8 min

1.32e-15

2.84e-17

Fr-222

0.240 h

5.79e-16

8.74e-17

Fr-223

0.363 h

2.20e-15

7.76e-17

Radium

Ra-222

38 s

4.03e-16

8.66e-18

Ra-223

11.4 d

5.47e-15

1.21e-16

Ra-224

3.66 d

4.29e-16

9.15e-18

Ra-225

14.8 d

2.40e-16

1.07e-17

Ra-226

1.60E+03 y

2.84e-16

6.11e-18

Ra-227

0.703 h

7.01e-15

1.82e-16

Ra-228

5.75 y

0.00e+00

0.00e+00

Actinium

Ac-223

2.2 min

1.87e-16

4.42e-18

Ac-224

2.90 h

8.01e-15

1.77e-16

Ac-225

10.0 d

6.37e-16

1.47e-17

Ac-226

1.21 d

5.57e-15

1.35e-16

Ac-227

21.8 y

5.12e-18

1.41e-19

Ac-228

6.13 h

4.49e-14

9.39e-16

Thorium

Th-226

0.515 h

3.21e-16

7.25e-18

Th-227

18.7 d

4.43e-15

9.81e-17

Th-228

1.91 y

8.10e-17

2.13e-18

Th-229

7.34E+03 y

3.36e-15

7.89e-17

Th-230

7.70E+04 y

1.48e-17

6.37e-19

Th-231

1.06 d

4.58e-16

1.55e-17

Th-232

1.40E+10 y

7.24e-18

4.55e-19

Th-234

24.1 d

2.94e-16

7.49e-18

Protactinium

Pa-227

0.638 h

7.38e-16

1.81e-17

Pa-228

22.0 h

5.16e-14

1.05e-15

Pa-230

17.4 d

2.91e-14

6.07e-16

Pa-231

3.27E+04 y

1.57e-15

3.78e-17

Pa-232

1.31 d

4.26e-14

8.82e-16

Pa-233

27.0 d

8.55e-15

1.86e-16

Pa-234

6.70 h

8.72e-14

1.80e-15

Pa-234m

1.17 min

1.21e-15

1.08e-16

Uranium

U-230

20.8 d

4.56e-17

1.55e-18

U-231

4.20 d

2.56e-15

6.40e-17

U-232

72.0 y

1.17e-17

8.07e-19

U-233

1.58E+05 y

1.42e-17

5.99e-19

U-234

2.44E+05 y

6.11e-18

5.86e-19

U-235

7.04E+08 y

6.46e-15

1.40e-16

U-236

2.34E+07 y

3.86e-18

5.03e-19

U-237

6.75 d

5.29e-15

1.23e-16

U-238

4.47E+09 y

2.50e-18

4.23e-19

U-239

0.392 h

2.13e-15

8.25e-17

U-240

14.1 h

5.87e-17

3.19e-18

Neptunium

Np-232

0.245 h

5.38e-14

1.13e-15

Np-233

0.603 h

3.39e-15

7.79e-17

Np-234

4.40 d

6.83e-14

1.31e-15

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Sv s-1 Bq-1 m3)		 Groundshine
(Sv s-1 Bq-1 m2)

Neptunium

Np-235

1.08 y

4.19e-17

2.86e-18

Np-236

1.15E+05 y

4.74e-15

1.11e-16

Np-236m

22.5 h

1.92e-15

4.38e-17

Np-237

2.14E+06 y

8.87e-16

2.52e-17

Np-238

2.12 d

2.56e-14

5.34e-16

Np-239

2.36 d

6.95e-15

1.54e-16

Np-240

1.08 h

5.88e-14

1.24e-15

Np-240m

7.4 min

1.55e-14

3.87e-16

Plutonium

Pu-234

8.80 h

2.49e-15

5.78e-17

Pu-235

0.422 h

3.45e-15

8.00e-17

Pu-236

2.85 y

4.68e-18

7.35e-19

Pu-237

45.3 d

1.76e-15

4.25e-17

Pu-238

87.7 y

3.50e-18

6.26e-19

Pu-239

2.41E+04 y

3.48e-18

2.84e-19

Pu-240

6.54E+03 y

3.42e-18

6.01e-19

Pu-241

14.4 y

6.33e-20

1.72e-21

Pu-242

3.76E+05 y

2.90e-18

4.98e-19

Pu-243

4.95 h

9.61e-16

2.27e-17

Pu-244

8.26E+07 y

2.08e-18

4.16e-19

Pu-245

10.5 h

1.86e-14

4.06e-16

Pu-246

10.9 d

5.35e-15

1.23e-16

Americium

Am-237

1.22 h

1.55e-14

3.38e-16

Am-238

1.63 h

4.04e-14

8.27e-16

Am-239

11.9 h

9.26e-15

2.08e-16

Am-240

2.12 d

4.67e-14

9.57e-16

Am-241

4.32E+02 y

6.74e-16

2.33e-17

Am-242

16.0 h

6.09e-16

1.61e-17

Am-242m

1.52E+02 y

2.49e-17

2.26e-18

Am-243

7.38E+03 y

1.85e-15

4.79e-17

Am-244

10.1 h

3.59e-14

7.60e-16

Am-244m

0.433 h

3.63e-16

5.55e-17

Am-245

2.05 h

1.45e-15

4.12e-17

Am-246

0.650 h

3.06e-14

6.80e-16

Am-246m

0.417 h

4.74e-14

9.95e-16

Curium

Cm-238

2.40 h

2.85e-15

6.56e-17

Cm-240

27.0 d

4.17e-18

7.69e-19

Cm-241

32.8 d

2.11e-14

4.65e-16

Cm-242

163 d

4.02e-18

7.02e-19

Cm-243

28.5 y

5.30e-15

1.18e-16

Cm-244

18.1 y

3.40e-18

6.44e-19

Cm-245

8.50E+03 y

3.49e-15

8.05e-17

Cm-246

4.73E+03 y

3.10e-18

5.76e-19

Cm-247

1.56E+07 y

1.38e-14

2.99e-16

Cm-248

3.39E+05 y

2.35e-18

4.40e-19

Cm-249

1.07 h

1.02e-15

3.32e-17

Cm-250

6.90E+03 y

0.00e+00

0.00e+00

Berkelium

Bk-245

4.94 d

9.26e-15

2.06e-16

Bk-246

1.83 d

4.27e-14

8.88e-16

Bk-247

1.38E+03 y

4.20e-15

9.42e-17

Bk-249

320 d

4.68e-19

5.34e-21

 

External Dose Coefficients
Radionuclide Half-life Cloudshine
(Svs-1Bq-1m3)		 Groundshine
(Svs-1Bq-1m2)

Berkelium

Bk-250

3.22 h

4.12e-14

8.43e-16

Californium

Cf-244

0.323 h

4.74e-18

8.19e-19

Cf-246

1.49 d

3.92e-18

5.73e-19

Cf-248

334 d

3.25e-18

5.58e-19

Cf-249

3.50E+02 y

1.45e-14

3.15e-16

Cf-250

13.1 y

3.09e-18

5.32e-19

Cf-251

8.98E+02 y

5.01e-15

1.13e-16

Cf-252

2.64 y

3.63e-18

5.24e-19

Cf-253

17.8 d

1.75e-17

5.17e-20

Cf-254

60.5 d

1.01e-20

1.73e-21

Einsteinium

Es-250

2.10 h

1.76e-14

3.65e-16

Es-251

1.38 d

3.65e-15

8.39e-17

Es-253

20.5 d

1.60e-17

6.63e-19

Es-254

276 d

1.57e-16

9.76e-18

Es-254m

1.64 d

2.11e-14

4.58e-16

Fermium

Fm-252

22.7 h

3.45e-18

5.41e-19

Fm-253

3.00 d

3.12e-15

7.14e-17

Fm-254

3.24 h

4.76e-18

5.99e-19

Fm-255

20.1 h

8.82e-17

6.29e-18

Fm-257

101 d

4.15e-15

9.50e-17

Mendelevium

Md-257

5.20 h

4.52e-15

1.01e-16

Md-258

55.0 d

3.89e-17

3.32e-18
Table of Contents
Date Modified: 2007-12-21

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Important Notices