Details

Autor(en) / Beteiligte

• Hiremath, G. B.
• Ayachit, N. H.
• Badiger, N. M.

Titel

Potentiality of high Z doped PVA polymer as a gamma, neutron and charged particles shielding material

Ist Teil von

• Radiation effects and defects in solids, 2023-07, Vol.178 (7-8), p.1038-1055

Ort / Verlag

Abingdon: Taylor & Francis

Erscheinungsjahr

2023

Quelle

Taylor & Francis

Beschreibungen/Notizen

• The gamma, neutron and charged particle shielding behaviour of TaC, WC, HgO, PbO and Bi 2 O 3 doped PVA polymers were studied. The gamma and neutron shielding parameters were calculated using EpiXS and NGCal software. Also, (stopping power and range) charged particles such as electrons, protons, alpha and carbon ions were calculated using the ESTAR and SRIM programmes. The increase in weight percent of TaC in PVA polymer increases the value of mass attenuation coefficient, and decreases the mean free path. Similar results were observed for WC, HgO, PbO and Bi 2 O 3 -doped PVA polymers. At 0.662 MeV, the mass attenuation coefficient of 50PVA+50TaC is 0.08960 cm 2 /g, 50PVA+50WC is 0.0902 cm 2 /g, 50PVA+50HgO is 0.0944 cm 2 /g, 50PVA+50PbO is 0.0958 cm 2 /g, and 50PVA+50Bi 2 O 3 is 0.0964 cm 2 /g. The 50 wt% of Bi 2 O 3 doped PVA shows a 35% enhancement in the values of mass attenuation coefficient and a 25% reduction of mean free path up to 100 keV in contrast to the 50 wt% of TaC doped PVA. It was discovered that 50 wt% of Bi 2 O 3 doped PVA outperforms 50 wt% of TaC doped PVA, and these selected polymers are lighter than commercial shields. Therefore, 50 wt% of Bi 2 O 3 doped PVA is a good gamma, neutron, and charged particles shielding material.