Speaker
Description
The European Space Radiation Environment Modelling system (ESPREM) is a modular framework that attempts to capture the radiation in the near-Earth environment from various sources and provide estimates for its effects. It is composed of models for the trapped radiation inside the Earth's Radiation Belts, i.e. the American AE9/AP9/SPM & the European Trapped Energetic Particle Environment Model (TREPEM) as well as its counterpart from solar and galactic sources, as described by the Virtual Enhancements – Solar Proton Event Radiation (VESPER) and Matthiä's DLR GCR models. Especially for the latter two sources, the system implements the Magnetospheric Shielding Model (MSM) to account for the shielding effect of the Magnetosphere. The environment model outputs are coupled with state-of-the-art radiation effects tools (e.g. MULASSIS, IRONSSIS and MCICT) to estimate internal charging, ionising and non-ionising dose and single event effects. The probability distributions of the radiation effects - resulted from different sources - are merged statistically assuming various degrees of inter-correlations and provide as an output the confidence levels for the effects along a given satellite orbit. As a result, the developed system captures the net effect from all radiation sources providing a single framework for the design and evaluation of future missions.
