Ef is a software for charged particles dynamics simulation. It's primary areas of application are accelerator science and plasma physics.
Ef focuses on nonrelativistic energies. Currently, particular emphasis is placed on low-energy beams, such that can be found in ion sources and electron guns.
Particles dynamics is traced under action of external electromagnetic fields. Particle self-interaction is taken into account with particle-in-cell method.
Attention is given to integration with CAD software to allow for simulation of complex real-life experimental setups. An experimental plugin for FreeCAD exists.
Ef is a free software -- it's source code is open and avaible for modification and redistribution. It is written mostly in C++. Basic MPI support allows to take advantage of parallel execution in multiprocessor environment.