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GIVRE: A Protection Against Frost Deposit on Polar Instruments

  • N. Epchtein, M. Candidi, G. Durand (a1), L. Cadelis (a1), V. Minier (a1), C. Veyssière (a2), C. Walter (a2), A. Pierre (a3), A. Agabi (a4), E. Fossat (a4) and F. Jeanneaux (a4)...

Abstract

The CEA, in coordination with IPEV and LUAN, will prepare an experiment to study frost formation on surfaces in radiative cooling in the winter. This experiment has been shipped to be installed at Concordia before the 2007 winter period. It will be controlled from Concordia winterover personal, through PC server that will locally archive data from WEBcams and several local heat regulators. This experiment will be used to give recipes on the way to compensate with heaters the radiative cooling from the sky and maintain instrument surfaces at temperature just above icing conditions. The individual regulators proposed in this experiment will be usable as standalone ice protection systems for existing and future telescopes.

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