Table 1.

Common materials used for designing the radiation shields.

Number	Material	Density (g/cm3)
1	Tantalum	16.69
2	Tungsten	19.25
3	Lead	11.34
4	Aluminium	2.7
5	Silver	10.49
6	Gold	19.30
7	Copper	8.94
8	Titanium	4.5