Some Basic Experiments on Dusty Plasma with Negative Hydrogen Ions Generation

Some parametric studies like the effect of discharge current, plasma temperature and working pressure on the charging of dust grains in hot cathode discharge plasma will be presented. The designing concepts of a novel experiment to produce negative hydrogen ions from Cesium coated dust particles and related preliminary studies with dust particles in hydrogen plasma will be presented. The aim of producing negative hydrogen ions is to devise the possibility of using such negative ions in Neutral Beam Injection Heating of Tokamak plasma. \textbf{Refs: } S.S. Kausik, M.Chakraborty, P. Dutta, M. Kakati and B.K. Saikia, \textit{Phys. Lett. A} 372, 860 (2008)