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Stimulated Luminescence of Simulant Minerals Martians and Lunars

Abstract

Space agencies are interested in understanding the conditions of Martian and lunar surfaces, as well as radiation levels, to develop technologies for future missions. This project focuses on the evaluation of mineral simulants representative of Mars and the Moon, provided by the National Aeronautics and Space Administration (NASA), aiming to determine their viability as ionizing radiation detectors. Another mineral group of interest are olivines (Mg2+, Fe2+)2SiO4, as well as several materials with similar structures. Olivine makes up 1.5% of the volume of the Earth's crust, however, the presence of this mineral has already been identified in Martian and lunar soil. Three well-established techniques in dosimetry - thermoluminescence (TL), optically stimulated luminescence (OSL) and radioluminescence (RL) - will be employed to investigate the response of these simulant minerals to ionizing radiation. The research seeks to identify the sensitivity of these minerals to different types of radiation (beta, gamma, X-rays) as well as the ability to record exposure. These results will contribute to the understanding of the applicability of simulant minerals as radiation detectors in environments similar to those of Mars and the Moon. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)