4 August 2014 Space radiation parameters for EUI and the Sun Sensor of Solar Orbiter, ESIO, and JUDE instruments
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Abstract
This paper presents predictions of space radiation parameters for four space instruments performed by the Centre Spatial de Liège (ULg – Belgium); EUI, the Extreme Ultra-violet Instrument, on-board the Solar Orbiter platform; ESIO, Extreme-UV solar Imager for Operations, and JUDE, the Jupiter system Ultraviolet Dynamics Experiment, which was proposed for the JUICE platform. For Solar Orbiter platform, the radiation environment is defined by ESA environmental specification and the determination of the parameters is done through ray-trace analyses inside the EUI instrument. For ESIO instrument, the radiation environment of the geostationary orbit is defined through simulations of the trapped particles flux, the energetic solar protons flux and the galactic cosmic rays flux, taking the ECSS standard for space environment as a guideline. Then ray-trace analyses inside the instrument are performed to predict the particles fluxes at the level of the most radiation-sensitive elements of the instrument. For JUICE, the spacecraft trajectory is built from ephemeris files provided by ESA and the radiation environment is modeled through simulations by JOSE (Jovian Specification Environment model) then ray-trace analyses inside the instrument are performed to predict the particles fluxes at the level of the most radiation-sensitive elements of the instrument.
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Laurence Rossi, Laurence Rossi, Lionel Jacques, Lionel Jacques, Jean-Philippe Halain, Jean-Philippe Halain, Etienne Renotte, Etienne Renotte, Tanguy Thibert, Tanguy Thibert, Denis Grodent, Denis Grodent, } "Space radiation parameters for EUI and the Sun Sensor of Solar Orbiter, ESIO, and JUDE instruments", Proc. SPIE 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI, 91501H (4 August 2014); doi: 10.1117/12.2052703; https://doi.org/10.1117/12.2052703
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