Table 2–4

MAJOR ACTIVATED CORROSION PRODUCTS IN LIGHT WATER REACTORS

Nuclide

Half-Life

Formation Reaction

Nature Isotopic Abundance (%)

Activation Cross Section (Barns)a

Thermal

Epithermal

Fast

51Cr

27.7 d

50Cr(n,γ)51Cr

4.35

16.0

0.68

 

54Mn

312.2 d

54Fe(n,p)54Mn

5.8

 

 

0.11

56Mn

2.58 h

55Mn(n,γ)56Mn

100

13.3

1.13

 

55Fe

2.73 y

54Fe(n,γ)55Fe

5.8

2.5

0.1

 

59Fe

44.51 d

58Fe(n,γ)59Fe

0.3

1.14

0.1

 

58Co

70.88 d

58Ni(n,p)58Cob

68.3

 

 

0.146

60Co

5.27 y

59Co(n,γ)60Co

100

37.5

6.05

 

63Ni

100 y

62Ni(n,γ)63Ni

3.6

14.6

0.77

 

65Ni

2.52 h

64Ni(n,γ)65Ni

0.9

1.50

0.07

 

64Cu

12.7 h

63Cu(n,γ)64Cu

69.2

4.4

0.40

 

65Zn

243.8 d

64Zn(n,γ)65Zn

48.6

0.82

0.13

 

76As

26.3 h

75As(n,γ)76As

100

4.4

5.08

 

95Zr

64.02 d

94Zr(n,γ)95Zr

17.4

0.075

0.031

 

110mAg

249.8 d

109Ag(n,γ)110mAg

48.17

4.7

 

 

113Sn

115.1 d

112Sn(n,γ)113Sn

1.01

0.71

2.2

 

124Sb

60.2 d

123Sb(n,γ)124Sb

42.7

4.0

9.7

 

181Hf

42.4 d

180Hf(n,γ)181Hf

35.2

12.6

2.26

 

182Ta

114.43 d

181Ta(n,γ)182Ta

100

22.0

56.4

 

187W

23.9 h

186W(n,γ)187W

28.6

37.2

33.9

 

aData for 20°C.

bBurnup cross section, σb, for Co-58 is 1.9×10−21 cm2.



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