Table 6-8. Curies of Important Nuclides Released During Nuclear Excursion Involving Unirradiated, Unenriched Uranium Solution (400 g U/liter)

DOE-HDBK-3010-94

6.0 Inadvertent Nuclear Criticality; Material Release in Criticality Excursions

Table 6-8. Curies of Important Nuclides Released During Nuclear Excursion

Involving Unirradiated, Unenriched Uranium Solution (400 g U/liter)

(NRC, April 1979)

Radioactivity, Ci(a)

Half-life(b)

Nuclide

0 to 0.5 hr

0.5 to 8 hr

Total

Kr-83m

1.8 h

2.2E+1

1.4E+2

1.6E+2

Kr-85m

4.5 yr

2.1E+1

1.3E+2

1.5E+2

Kr-85

1.7 yr

2.2E-4

1.4E-3

1.6E-3

Kr-87

76.3 m

1.4E+2

8.5E+2

9.9E+2

Kr-88

2.8 h

9.1E+1

5.6E+2

6.5E+2

Kr-89

3.2 m

5.9E+3

3.6E+4

4.2E+4

Xe-131m

11.9 d

1.1E-2

7.0E-2

8.2E-2

Xe-133m

2.0 d

2.5E-1

1.6E+0

1.8E+0

Xe-133

5.2 d

3.8E+0

2.3E+1

2.7E+1

Xe-135m

15.6 m

3.1E+2

1.9E+3

2.2E+3

Xe-135

9.1 h

5.0E+1

3.1E+2

3.6E+2

Xe-137

3.8 m

6.9E+3

4.2E+4

4.9E+4

Xe-138

14.2 m

1.8E+3

1.1E+4

1.3E+4

I-131

8.1 d

1.2E+0

7.5E+0

8.7E+0

I-132

2.3 h

1.5E+2

9.5E+2

1.1E+3

I-133

0.8 h

2.2E+1

1.4E+2

1.6E+2

I-134

52.6 m

6.3E+2

3.9E+3

4.5E+3

I-135

6.6 h

6.6E+1

4.0E+2

4.7E+2

Page 6-19