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RADIATION SHIELDING DATA ON MALLORY 1000 

                            (NARROW BEAM RADIATION)

 

Isotope

 

Gamma ray

Energy

MeV

Absorbtion

Coefficient

mm-1

 

Half

thickness

mm

Tenth layer

thickness

mm

Cobalt 60

1.25 AV

093

7.5

24.8

 

Iodine 131

0.364

.369

1.88

6.3

 

 

0.638

.174

4.0

13.2

 

Radium

2.20

.072

9.7

32.0

 

Sodium 24

1.38

0.97

7.2

23.6

 

 

2.76

.066

10.5

34.8

 

Tungsten 187

0.68

.143

4.9

16.0

 

 

COMPARATIVE Absorbtion DATA

 

Source

M1000

M3950

Lead

 

Colbalt 60 ½ thickness.mm

7.5

7.0

11.7

 

Narrow beam radiation tenth layer thickness .mm

24.8

24.3

38.3

 

  Chart depicting the gamma-ray absorption characteristics of Mallory 1000 and other shielding materials, showing tenth layer thickness with good geometry (narrow beam radiation).

 

All Mallory Alloys Group products conform to, if not exceed, the relevant standards as assured by the Quality Management System Quality Management System - ISO 9002, EN 29002, BS5750-2


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