FRANÇAIS
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Space Environment
SEMIRAMIS
Space Radiation Simulation Facility - Vacuum Charged with Particles, Ultraviolets, Contamination - for Studies of External Spacecraft Surfaces
Objectives
- Studies of damage mechanisms and space environment simulation techniques for low, polar and geostationary earth orbits
- Studies of the degradation of spacecraft external surfaces, particulary prediction of the evolution of the thermo-optical properties of thermo-control materials and coatings
Main Features
- Long-term space environment simulations with in-situ measurements of optical spectral reflectance (250 to 2 500 nm) and solar reflectance
- Simultaneous irradiations with protons, electrons and ultraviolet beams:
- electrons energy range: 400 keV to 2 MeV
- protons energy range: 40 keV to 350 keV (2,2 MeV option)
- Ultraviolet radiation ranging from 0,5 to 7 « sun » obtained from Xenon filtered sources (with infrared and visible rejection)
- Contamination of sample surfaces with V.C.M. products in controled conditions (in-situ measurements with Quartz Crystal Microbalances)
- Pressure below 1.0 10-4 Pa (Cryogenic pumping units)
- Temperature range: - 50 to + 80°C (option: liquid nitrogen temperature)
- Irradiated zone: 120 mm square surface (25 samples 20 by 20 mm)
Funding
- Conseil Régional de Midi-Pyrénées
- Centre National d’Etudes Spatiales (CNES)
- European Space Agency (ESA)
- Centre National d'Etudes et de Recherches Aérospatiales (ONERA)
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