M K MAHANTA and K S GOSWAMI

Centre of Plasma Physics, Saptaswahid Path, Dispur 781 006, India

Abstract.

The aim of this brief report is to study the behaviour of sheath structure in a multi-component plasma with dust-neutral collisions. The plasma consists of electrons, ions, micron size negatively charged dust particles and neutrals. The sheath-edge potential and sheath width are calculated for collisionally dominated sheath. Comparison of collisionless and collisionally dominated sheath are made.

Keywords: Multi-component; collisional sheath-width; collisional sheath-edge potential.

Pacs Nos. 52.25.Zb; 52.35.Mw; 52.40.Hf