Table 6-7. Curies of Important Nuclides Released During Nuclear Excursion Involving Spent Fuel Solution

DOE-HDBK-3010-94

6.0 Inadvertent Nuclear Criticality; Material Release in Criticality Excursions

Table 6-7. Curies of Important Nuclides Released During Nuclear Excursion

Involving Spent Fuel Solution

(NRC, April 1977)

Radioactivity, Ci(a)

Half-life(b)

Nuclide

0 to 0.5 hr

0.5 to 8 hr

Total

Kr-83m

1.8 h

3.7E+0

3.3E+1

3.7E+1

Kr-85m

4.5 yr

1.6E+1

1.5E+2

1.7E+2

Kr-85

1.7 yr

1.5E-4

1.4E-3

1.6E-3

Kr-87

76.3 m

1.0E+2

9.0E+2

1.0E+3

Kr-88

2.8 h

6.5E+1

5.9E+2

6.6E+2

Kr-89

3.2 m

4.1E+3

3.7E+4

4.1E+4

Xe-131m

11.9 d

3.8E-4

3.5E-3

3.9E-3

Xe-133m

2.0 d

5.5E-2

1.9E+0

2.2E+0

Xe-133

5.2 d

1.3E+0

2.3E+1

2.7E+1

Xe-135m

15.6 m

1.1E+1

2.8E+3

3.3E+3

Xe-135

9.1 h

1.6E+1

3.5E+2

4.1E+2

Xe-137

3.8 m

3.8E+3

4.2E+4

4.9E+4

Xe-138

14.2 m

1.2E+3

9.5E+3

1.1E+4

I-129

2E+7y

3.9E-10

4.3E-10

I-131

8.1 d

1.8E-1

1.6E+0

1.8E+0

I-132

2.3 h

6.7E-1

6.1E+0

6.7E+0

I-133

0.8 h

3.5E+0

3.1E+1

3.5E+1

I-134

52.6 m

4.8E+1

4.3E+2

4.8E+2

I-135

6.6 h

1.2E+1

1.0E+2

1.2E+2

Page 6-18