Baltador, C., Zanini, M., Veltri, P., Cavenago, M., & Serianni, G. (2017). Effect of Filter Field and Biased Double-Bias Plate on Volume Process in Negative Ion Sources. Talk presented at 2nd Research Coordination Meeting "Plasma-wall Interaction with Reduced-activation Steel Surfaces in Fusion Devices". Vienna. 2017-10-16 - 2017-10-18.