Modelling of Be transport in PSI experiments at PISCES-B

Abstract Light emission patterns of BeI and BeII in the PISCES-B divertor simulator were simulated using the 3D Monte-Carlo code ERO. Many additional physical effects, e.g. Be collisions with neutral particles, were implemented into the code and tested alongside with the underlying data (e.g. ionization rates) by detailed comparison with experimental observations. This analysis is important to fully understand the Be impurity transport, deposition and re-erosion in PISCES-B, which will form the basis to model the Be behaviour in the JET ILW project and ITER.