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Lead Properties / Gamma Ray Thickness
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Recommended Lead Sheet Thickness' for Gamma Shielding
Energy (mev)
Activity
0.2
0.5
0.8
1
1.5
2
2.5
3
4
10 mc
-0.14
-0.36
-0.27
-0.11
0.37
0.78
1.15
1.4
1.7
20 mc
-0.09
0
0.41
0.076
1.57
2.16
2.63
2.91
3.21
50 mc
-0.01
0.47
1.13
1.9
3.15
4
4.57
4.9
5.2
100 mc
0.06
0.82
1.99
2.77
4.34
5.38
6.05
6.41
6.71
200 mc
0.1
1.17
2.67
3.63
5.54
6.77
7.52
7.92
8.21
500 mc
0.17
1.94
3.57
4.78
7.12
8.6
9.47
9.91
10.21
1 c
0.23
1.99
4.25
5.56
8.31
9.99
10.95
11.41
11.74
2 c
0.28
2.35
4.93
6.52
9.51
11.37
12.42
12.92
13.72
5 c
0.36
2.81
5.82
7.85
11.09
13.21
14.37
14.91
15.21
10c
0.41
3.17
6.5
8.52
12.28
14.58
15.85
16.42
16.72
20 c
0.47
3.52
7.18
9.39
13.48
15.98
17.23
17.93
18.23
50 c
0.54
3.99
8.08
10.54
16.06
17.81
19.27
19.92
20.22
100 c
0.6
4.34
8.78
11.4
16.25
19.2
20.75
21.43
21.72
Danger Range
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
20 cm
0.26
1.64
3.15
4.02
5.55
6.44
6.85
7.00
7.00
50 cm
0.11
0.71
1.36
1.73
2.39
2.77
2.95
3.01
3.01
1 M
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2 M
-0.11
-0.71
-1.36
-1.72
-2.39
-2.77
-2.95
-3.01
-3.01
5 M
-0.26
-1.64
-3.16
-4.02
-5.55
-6.44
-6.85
-7
-7
10 M
-0.037
-2.35
-4.52
-5.76
-7.94
-9.21
-9.8
-10.01
-10.01
Working time hr/day
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
1
-0.17
-1.06
-2.04
-2.6
-3.59
-4.16
-4.42
-4.52
2
-0.11
-0.71
-1.36
-1.73
-2.39
-2.77
-2.95
-3.01
4
-0.06
-0.35
-0.65
-0.87
-1.2
-1.39
-1.47
-1.51
8
0.00
0.
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