Six-Faces Induced Margins on Dose Calculation and Proposal for a New Satellite Geometry Exchange method

Very often the satellite platform geometry as well as the equipment one are confidential and cannot be shared between partners in a space project. In order to perform radiation analysis at electronic component level, the 6-faces method is commonly used for geometry information exchange between primes and subcontractors. However, this method is known to be quite conservative. In the frame of the ESA funded project GTREFF the margins induced by the use of the 6-faces method were identified and analyzed for a typical geostationary mission. Following this, a new method was proposed and studied in the frame of a CNES funded project, with promising results.