Monte Carlo Simulation of the Response of MARIE

The instrument MARIE aboard Mars Odyssey is a charged particle tele- scope that is currently collecting data on galactic cosmic rays and solar energetic particles in Mars orbit. Calibration of the MARIE data to yield astrophysically important quantities such as particle fluxes or spectra exterior to the spacecraft requires detailed modeling of the transport of particles through the spacecraft and instrument. In order to facilitate the calibration of the MARIE data, we have begun a program to simulate the response of MARIE using the FLUKA Monte Carlo radiation transport code.