Abstract:

Aiming at the operating faults of geosynchronous orbit satellite due to medium’s internal charging, we put forward Monte Carlo method to simulate the process of the medium’s internal charging. The  plate model charging process of  spacecraft medium is simplified as  electron  crossing the screen of  aluminium into epoxy.  With the help of  the MCNP software, we obtained the results that different thicknesses of aluminium and different electron energies influence on the largest electric field of medium.

Key words:  internal charging, MCNP software, electron