When irradiating targets with ion beams, it is often useful to accompany the experiments by computer simulations. This is frequently done using Monte Carlo codes. Several conventional codes do not support 3D target geometries and are thus not well suited to simulate the irradiation of nanostructures.
Iradina is an open source computer code for simulating ion beam irradiation of nanostructures. Its name is short for "ion range and damage in nanostructures". It is written in plain c and can be used on different platforms. Iradina uses some fast routines adapted from corteo, making it quite fast.
The scientific background of iradina is described here.