Week 8: Electrical breakdown, Secondary electron emission and avalanches, Townsend’s theory
There are a variety of methods for sustaining a plasma. For most technological applications the most commonly used method for creating and sustaining a plasma is by applying electric fields to a neutral gas. In this week we restrict ourselves to discussing plasma generation and breakdown for the low pressure case (< 100 Torr), high pressure breakdown will be discussed later in.
Course Material
- Week 1: Introduction
- Wee k 2: Concept of a Distribution Function, Forms of the Distribution Function
- Week 3: Interactions between Charged Particles, Plasma Parameter, Defining Characteristics of a Plasma
- Week 4: Collisions, Elastic collisions, Inelastic collisions
- week 5: Creating a low temperature plasma
- Week 6: Plasma Chemistry
- Week 7: Fluid plasma description
- Week 8: Electrical breakdown, Secondary electron emission and avalanches, Townsend’s theory
- Week 9: Paschen’s law, Minimum breakdown voltage, Self sustaining glow discharge, Discharge structure, DC discharges
- Week 10:Sheath formation in a dc discharge, Sheath potential at a floating wall, DC magnetron discharges, Pulsed DC discharges
- Chapters 10
- Department Physics
- Teacher
Dr. Safdar Hussain
