Atmospheric Pressure Plasma Systems and Applications

Atmospheric Pressure

This type of plasma produces nearly the same pressure as the surrounding pressure (normal pressure). The mean-free path among the plasma species is very short in this type of plasmas with collisions dominated regions. The LTE may be satisfied, including kinetic equilibrium between the species. This kind of plasma is also considered in chemical equilibrium such that species concentrations in LTE plasmas are only a function of temperature. The atmospheric pressure plasmas have two different types: such as thermal and non-thermal atmospheric pressure plasma. Glow discharge, high frequency with low-intensity discharge, and corona discharge are typical examples of cold plasmas. This type of plasma exists in various research fields, including physics, engineering, medicine, and biology (Shahzad, 2019; Shahzad & Bashir, 2019a; Shahzad & Bashir, 2019b; Shahzad et al., 2019).