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Title: Studies on the effect of PbO-magnetite (Fe3O4) on shielding properties of EPDM composites for 662 keV gamma rays
Authors: Kamat, Vinayak Anand
Swaroop, K
Kiran, K U
Somashekarappa, H M
Keywords: Attenuation coefficient;HVL;TVL;Relaxation length;AC conductivity
Issue Date: Aug-2018
Publisher: NISCAIR-CSIR, India
Abstract: In the present study different combinations of PbO and Fe3O4 in ethylene-propylene-diene monomer (EPDM) matrix have been synthesized and studied the ideal combination for gamma ray shielding. Attenuation parameters such as attenuation coefficient (µ), half value layer (HVL), tenth value layer (TVL), relaxation length (λ) and mass attenuation coefficient (µm) have been determined for all samples. It has been found that EPDM with 40 phr of lead oxide and 20 phr of magnetite (DCPM20) has good attenuation ability compared to other synthesized samples for 662 keV gamma rays. Also, DCPM20 has shown better mechanical and AC electrical conductivity properties compared to pure lead-based EPDM composites. Considering all the studied parameters DCPM20 sample has been found to be better radiation shielding material among the studied composites.
Page(s): 639-642
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.56(08) [August 2018]

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