PROCESSES IN GAS AND PLASMAS WITH NEGATIVE-IONS

The phenomena induced by the negative ion processes in the weakly ionized gas and plasmas are reviewed. The electron attachment and detachment processes are briefly described. A particular attention is given to the special features of the charged particle transport in the electronegative gases: electron attachment cooling, absolute negative conductivity of plasmas, the unstable negative ion effect on the electron transport, forming of regions of the steep plasma density variation. The induced by negative ions new modes of waves and instabilities in plasmas are studied. The suggestions about using the negative ion processes in ecology and environmental science are discussed.