XCOM and EpiXS evaluation of cosmic radiation shielding effectiveness of cerium oxide and bismuth oxide doped nanocoating for satellite applications

Authors

Toni Beth Guatato-Lopez Philippine Space Agency
Alvie Asuncion-Astronomo DOST − Philippine Nuclear Research Institute
Gil Nonato C. Santos Physics Department, De La Salle University, Manila
Christopher T. Que Physics Department, De La Salle University, Manila
Dominic P. Guaña Philippine Space Agency
Paul Leonard Atchong Hilario Philippine Space Agency

Abstract

We investigated a potential coating material that incorporates cerium and bismuth oxides in a polymer matrix. Radiation shielding parameters, such as mass attenuation coefficient, mean free path (mfp), and half-value layer (HVL), of this composite material with respect to various concentrations of cerium oxide and bismuth oxide in the vinyl ester matrix were calculated using XCOM and EpiXS. Results indicate that, compared to a bare polymer, the mass attenuation coefficient, measured at 1 GeV photon energy, increased by 109% when the composite has a cerium oxide concentration of 40% w/v. This confirms the performance of cerium oxide as good radiation shielding filler for higher energy ranges such as cosmic radiation.

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Issue

2023: Proceedings of the 41st Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2023-2C-05

Section

High Energy and Nuclear Physics

Published

2023-07-03

How to Cite

[1]

TB Guatato-Lopez, A Asuncion-Astronomo, GNC Santos, CT Que, DP Guaña, and PLA Hilario, XCOM and EpiXS evaluation of cosmic radiation shielding effectiveness of cerium oxide and bismuth oxide doped nanocoating for satellite applications, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-2C-05 (2023). URL: https://proceedings.spp-online.org/article/view/SPP-2023-2C-05.