Experimental determination of adhesion force of lunar dust simulants using centrifugal force
Détermination expérimentale de la force d'adhésion de simulants de poussières lunaires par utilisation de la force centrifuge
Résumé
Lunar exploration have been impacted by the dust contamination occurring on scientific equipment ([1]–[2]). The next space missions will be initiated by robots, with no human intervention and are no longer confined to the Moon: planets, comets and asteroids are also targeted. It appears that dust contamination can also occur in tokamak chambers. Indeed, dust particles are produced by repetitive interactions between the plasma and the wall of the tokamak chamber and can be electrically charged due to tritium adsorption. Such dusts can be responsible for tritium inventory issues and safety concerns in case of a loss of confinement. In both cases, it becomes more and more crucial to anticipate and bring under control the overall dust adhesion problem and more specifically to quantify adhesion forces.
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