Development of PMMA composites with tungsten trioxide for improved gamma radiation shielding in microsatellites

Satellites are exposed to various types of radiation and extreme temperatures in space, which can lead to damage and malfunctioning of critical components. Therefore, the use of an efficient shielding system is essential for ensuring the longevity and performance of satellites. In the ever-evolving landscape of space exploration, the demand for resilient and efficient materials to safeguard the delicate internal components of microsatellites has never been more critical. This work investigated the gamma-ray shielding performance, and the physical and mechanical properties of poly (methyl methacrylate) (PMMA) composites embedded with 0-50 wt% tungsten trioxide (WO₃). The results showed that the addition of WO₃ had significantly improved the gamma shielding ability of PMMA composites. Linear attenuation coefficient and half-value layer were examined using three gamma sources (Cs-137, Ba-133, and Co-60).