LIGHT – Laser Ion Generation, Handling and Transport

Another focus is the modelling of experiments with high-power lasers for ion acceleration.

Further information about LIGHT

Here you can find further information about the LIGHT collaboration of the GSI Helmholtz Centre.

The longitudinal (left) and transversal (right) electric field in a 2D TNSA simulation with a thick layer

Here, a laser hits a thin foil, which is immediately ionised. The electrons leave the material much faster than the much heavier ions, thus creating a strong space charge field. A thin layer of impurities on the foil, consisting of protons among other things, is accelerated in this space charge field. The acceleration takes place in a μm range behind the target. Injecting this beam into an ordinary periodic focussing structure (m-range) is a multi-scale problem, which can only be simulated with different, separate codes in independent space and time scales. At the department, the simulation tool VSim from the company Tech-X is used for this purpose, among others.

Simulation of the Radiation Pressure Acceleration (RPA) of carbon ions
Comparison of longitudinal electron cloud wakefields obtained from 2D ES (openECLOUD) and 3D EM (VSim) simulations