Gilson, E. P., Bortolon, A., Diallo, A., Laggner, F., Lunsford, R., Maingi, R., et al. (2019). An Impurity Powder Dropper for Wall Conditioning, Power Exhaust, and Transport Studies: Recent Results and Future Plans. Talk presented at 19th Coordinated Working Group Meeting. Berlin. 2019-03-12 - 2019-03-14.