Table 1.

HVL value of radiation shielding materials at 1.25 meV.

Shielding material	Polymer	Attenuation coefficient (cm−1)	HVL (cm)	Ref.
Water	–	0.06323	10.96	29
Ordinary concrete	–	0.13342	5.19	29
Bi2O3	Nature rubber	0.105	7	30
Bi2O3	Polyvinyl alcohol	0.127	5.475	20
CdO	High density polyethylene	0.104	6.67	31
Pb3O4	Phenyl epoxy	0.103	6.74	32
PbO2	Polyacrylamide	0.1343	5.16	This work