HelMod model

HelMod is a 2D Monte Carlo model to simulate the solar modulation of galactic cosmic rays.
The model is based on the Parker\u2019s transport equation which contains diffusion, convection, particle drift and energy loss. Following the evolution in time of the solar activity, we are able to modulate a local interstellar spectrum (LIS), that we assumed isotropic beyond the termination shock, down to the Earth position inside the heliosphere.

Read more inĀ Helmod website