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Physical Calibrations of the FREND Instrument Installed Onboard TGO Martian Orbiter

Mitrofanov, I. G.; Golovin, D. V.; Litvak, M. L. +10 more

The article presents results of ground calibrations of the FREND neutron telescope installed onboard the TGO spacecraft of the Russian-European ExoMars project. The main goal of the FREND space experiment is to measure hydrogen content in the subsurface layer of Mars to a depth of 1 m. High resolution maps of water mass fraction in the regolith ar…