APPENDIX B
FISSION PRODUCT INVENTORIES

Fission Product Inventories (Ci/MWe)a

Fission Product

Half-life

Inventory (Ci/MWe)

Kr-85

10.7 yrs560

560

Kr-85m

4.5 hours

24,000

Kr-87

1.3 hours

47,000

Kr-88

2.8 hours

68,000

Sr-89

50.5 days

94,000

Sr-90

29.1 years

3,700

Sr-91

9.5 hours

110,000

Y-91

58.5 days

120,000

Mo-99

2.7 days

160,000

Ru-103

56.1 min

110,000

Ru-106

2.2 hours

25,000

Te-129m

33.6 days

5,300

Te-131m

1.4 days

13,000

Te-132

3.3 days

120,000

Sb-127

3.8 days

6,100

Sb-129

4.4 hours

33,000

I-131

8.0 days

85,000

I-132

2.3 hours

120,000

I-133

20.8 hours

170,000

I-134

52.6 min

190,000

I-135

6.6 hours

150,000

Xe-131m

11.9 days

1,000

Xe-133

5.2 days

170,000

Xe-133m

2.2 days

6,000

Xe-135

9.1 hours

34,000

Xe-138

14.1 min

170,000

Cs-134

2.1 years

7,500

Cs-136

13.2 days

3,000

Cs-137

30.2 years

4,700

Ba-140

12.8 days

160,000

La-140

1.7 days

160,000

Ce-144

284.6 days

85,000

Np-239

2.4 days

1.64x106

aAdapted from NUREG-1228 (USNRC, 1988) and Wash-1400 (USNRC, 1975).



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Distribution and Administration of Potassium Iodide in the Event of a Nuclear Incident APPENDIX B FISSION PRODUCT INVENTORIES Fission Product Inventories (Ci/MWe)a Fission Product Half-life Inventory (Ci/MWe) Kr-85 10.7 yrs560 560 Kr-85m 4.5 hours 24,000 Kr-87 1.3 hours 47,000 Kr-88 2.8 hours 68,000 Sr-89 50.5 days 94,000 Sr-90 29.1 years 3,700 Sr-91 9.5 hours 110,000 Y-91 58.5 days 120,000 Mo-99 2.7 days 160,000 Ru-103 56.1 min 110,000 Ru-106 2.2 hours 25,000 Te-129m 33.6 days 5,300 Te-131m 1.4 days 13,000 Te-132 3.3 days 120,000 Sb-127 3.8 days 6,100 Sb-129 4.4 hours 33,000 I-131 8.0 days 85,000 I-132 2.3 hours 120,000 I-133 20.8 hours 170,000 I-134 52.6 min 190,000 I-135 6.6 hours 150,000 Xe-131m 11.9 days 1,000 Xe-133 5.2 days 170,000 Xe-133m 2.2 days 6,000 Xe-135 9.1 hours 34,000 Xe-138 14.1 min 170,000 Cs-134 2.1 years 7,500 Cs-136 13.2 days 3,000 Cs-137 30.2 years 4,700 Ba-140 12.8 days 160,000 La-140 1.7 days 160,000 Ce-144 284.6 days 85,000 Np-239 2.4 days 1.64x106 aAdapted from NUREG-1228 (USNRC, 1988) and Wash-1400 (USNRC, 1975).