Table A-1. SUMMARY OF MAJOR NUCLIDES AND RADIATION PROPERTIES

Nuclide

Half-life

Major Gamma-Rays and Intensities

R/hr/Ci at 1 m

Beta E MeV

Gamma E MeV

keV

%

keV

%

Ag-110 m

249.80 d

657.8

94.6

884.7

72.7

1.654

0.068

2.734

Ar-41

1.82 h

1293.6

99.2

0.696

0.464

1.284

As-76

26.30 h

559.1

45.0

657.0

6.1

0.274

1.065

0.430

Ba-139

83.76 m

165.9

22.0

0.029

1.654

0.306

Ba-140

12.79 d

537.2

24.4

162.6

6.7

0.165

0.304

0.191

Ba-141

18.27 m

190.2

49.0

304.2

26.6

0.577

0.858

0.891

Ba-142

10.70 m

255.1

18.0

1204.1

14.0

0.570

0.470

0.905

Br-84

31.80 m

881.5

42.0

1897.3

14.9

0.884

1.249

1.787

Cl-38

37.20 m

2167.5

44.0

1642.4

32.5

0.718

1.529

1.488

Ce-141

32.50 d

145.4

48.2

0.073

0.170

0.077

Ce-144

284.60 d

133.5

11.1

80.1

1.6

0.023

0.093

0.019

Co-57

271.80 d

122.1

85.9

136.5

10.7

0.151

0.018

0.125

CO-58

70.88 d

810.8

99.4

511.0

30.0

0.614

0.034

0.976

CO-60

5.27 y

1173.2

100.0

1332.5

100.0

1.369

0.096

2.506

Cr-51

27.70 d

320.1

10.1

0.023

0.004

0.033

Cs-134

2.06 y

604.7

97.6

795.9

85.4

0.070

0.162

1.555

Cs-136

13.16 d

818.5

99.7

1048.1

79.8

1.343

0.133

2.168

Cs-Ba137

30.17 y

661.7

85.2

0.381

0.171

0.598

Cs-138

32.20 m

1435.9

76.3

462.8

30.7

1.265

1.223

2.361

Cs-139

9.30 m

1283.2

7.0

627.2

1.6

0.158

1.654

0.306

Cu-64

12.70 h

511.0

35.7

1345.9

0.49

0.132

0.123

0.191

F-18

1.83 h

511.0

193.5

0.696

0.242

0.989

Fe-55

2.73 y

0.004

Fe-59

44.51 d

1099.2

56.5

1291.6

43.2

0.662

0.118

1.189

Hf-181

42.40 d

482.0

82.8

133.0

41.7

0.392

0.194

0.544

I-131

8.04 d

364.5

81.2

637.0

7.3

0.283

0.190

0.381

I-132

2.28 h

667.7

98.7

772.6

76.2

1.421

0.490

2.291

I-133

20.80 h

529.9

86.3

875.3

4.5

0.411

0.410

0.607

I-134

52.60 m

847.0

95.4

884.1

65.3

1.573

0.608

2.625

I-135

6.57 h

1260.4

28.9

1131.5

22.5

0.862

0.369

1.575

I-136

1.39 m

1313.0

69.4

1321.1

25.8

1.265

2.022

2.533

Kr-85

10.73 y

514.0

0.44

0.002

0.251

0.002

Kr-85 m

4.48 h

151.2

75.1

304.9

13.7

0.160

0.255

0.158

Kr-87

1.37 h

402.6

49.6

2554.8

13.2

0.433

1.324

0.793

Kr-88

2.84 h

196.3

26.0

834.8

13.0

1.025

0.365

1.955

Kr-89

3.15 m

220.9

20.0

585.8

16.6

0.973

1.362

1.834

Kr-90

32.30 s

1118.7

37.0

121.8

32.0

0.766

1.315

1.272

La-140

40.27 h

1596.5

95.4

487.0

45.5

1.273

2.022

0.232

La-141

3.90 h

1354.5

2.6

0.022

0.948

0.043

La-142

1.54 h

641.2

52.5

2397.7

16.3

1.354

0.847

2.719

Mn-54

312.20 d

934.8

100.0

0.511

0.004

0.836

Mn-56

2.58 h

846.8

98.9

1810.7

27.2

0.925

0.829

1.692

Mo-99

2.79 d

739.6

12.1

181.1

6.2

0.113

0.396

0.155

N-13

9.97 m

511.0

199.6

0.718

0.491

1.020

Na-24

14.96 h

1368.5

100.0

2754.1

99.9

1.939

0.554

4.121

Nb-95

34.97 d

765.8

99.8

0.481

0.044

0.764

Nb-97

1.23 h

657.9

98.1

0.437

0.467

0.665



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