Parameterization of galactic proton and helium fluxes for future space missions
Grimani, C.; Fabi, M.
University of Urbino - Italian Space Agency

A correct estimate of the performance of future space missions depends critically on the capability to predict the environmental conditions at the time the missions will take place. We have carried out a parameterization of the most abundant cosmic-ray fluxes at one AU under different conditions of solar modulation and Global Solar Magnetic Field (GSMF) polarity. Our modelization was developed on the basis of proton, helium, positron and electron experimental data gathered during the last two solar cycles and according to the intensity prediction for the following two. In particular, we present the expected radiation monitor observations and test-mass charging on board the LISA missions. Simulations have been carried out with the Fluka Monte Carlo program.