Plasma and Neutral Transport Study of Local Island Divertor Configuration in Large Helical Device Edge Region with 3D Monte Carlo Codes

Edge transport physics of the Local Island Divertor (LID) configuration in Large Helical Device (LHD) is studied with the 3D transport code package, EMC3-EIRENE [Y. Feng et al., Contrib. Plasma Phys. 44, 57 (2004)] [D. Reiter, Technical Report Jul-1947, KFA Juelich, Germany (1984)]. Particularly, the behaviour of neutrals around the divertor region was investigated, where it was found that the resulting profiles of atom andmolecular density as well as temperature are considerably different each other. The cause of these difference is discussed