In the vast expanse of interplanetary space, the omnipresence of radiation, consisting of protons, electrons, ions, and electromagnetic radiation (ranging from VUV to FIR), stands as a crucial environmental factor. While substantial attention has been dedicated to material qualification and engineering concerning individual radiation sources, the exploration of synergistic testing remains a relatively uncharted domain within the radiation testing community. This study builds upon previous investigations into proton/electron radiation and VUV light interactions[4]. Although the interactions of energetic particles with artificial light sources have been explored, the specific effects of dual irradiation involving protons and electrons, hereafter referred to as dual source irradiation, persist as a significant knowledge gap, even within established standards like ECSS[1,2]. Moreover, despite their prevalence among charged particles in the solar system, low-energy particles continue to be an understudied facet, highlighting the necessity for comprehensive examinations aligned with recognized standards.

The primary objectives of this research encompass demonstrating the feasibility of dual source irradiation with protons and electrons and concurrently augmenting the understanding of the interactions and processes unfolding when materials undergo simultaneous exposure to these particles.

To achieve these objectives, the study leverages the capabilities of the Complex Irradiation Facility (CIF) to conduct simultaneous irradiation of materials with protons and electrons. Building upon former research that subjected solar sails to proton irradiation[3], a methodical comparative analysis between dual source and single source irradiation is undertaken, drawing upon well-documented outcomes to provide a robust basis for the study.

The findings of this study not only present best practices for establishing dual source irradiation setups but also identify operational constraints, explore synergistic effects within the CIF and on materials. The investigation delves into the processes inherent in these interactions, conducting in-situ examinations to contribute insights to the scientific discourse.