Lindqvist, M., Wünderlich, D., Mimo, A., Mochalskyy, S., Revel, A., Minea, T., et al. (2021). 3D Monte-Carlo PIC modeling of plasma grid biasing and the co-extraction of electrons in negative ion sources. Poster presented at DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual.