Open AccessHow to Patch Active Plasma and Collisionless Sheath: Practical Guide
Author(s) -
Igor Kaganovich
Publication year - 2002
Language(s) - English
Resource type - Reports
DOI - 10.2172/809821
Subject(s) - plasma , debye sheath , electric field , physics , plasma parameters , boundary value problem , boundary (topology) , atomic physics , mechanics , mathematics , mathematical analysis , quantum mechanics
Most plasmas have a very thin sheath compared with the plasma dimension. This necessitates separate calculations of the plasma and sheath. The Bohm criterion provides the boundary condition for calculation of plasma profiles. To calculate sheath properties, a value of electric field at the plasma-sheath interface has to be specified in addition to the Bohm criterion. The value of the boundary electric field and robust procedure to approximately patch plasma and collisionless sheath with a very good accuracy are reported