EPOCH Developer Documentation

This section of the manual is aimed at people who intend to edit the EPOCH source code to extend or modify existing features, add new diagnostics or develop new physics packages.

EPOCH updates the electric and magnetic fields of the system by solving Maxwell’s equations, and these fields are used to update the positions of macro-particles using the Lorentz force law. The motion of charges gives the current densities in the system, which in turn are used to update the fields. Quantities are evaluated at different time-steps, and the order of opertations is given in this figure: