plasma in physics contains two types especially Non-thermal plasma...what is it?
Non-thermal plasma (NTP) is a weakly ionized gas far from thermodynamic equilibrium. While electron temperature is 1-10 eV, electrons are not able to transfer their entire kinetic energy gained from an externally applied electric field onto bigger particles and thus the gas remains non-thermal (Te >> Tg; Tg ≈ 300 - 1000 K
In non-thermal plasmas, their translational temperature is much smaller than their electron temperature and so excessive gas heating can be suppressed.
The general plasma contains ions , electrons, neutral atoms or molecules , and non-thermal plasma are those that do not equal the temperature of the ion with the temperature of the electron and approximately the temperature of ions are equal to the room temperature ,non-thermal plasma has many medical applications
A good example for a non thermal plasma is the atmosphere of the sun. Due tu the vast flow of energy through it, its state is far from thermal equilibrium. Often you will find statements about the temperature of sun's atmosphere but they are not founded, because this 'temperature' is not defined.
Good example my dear brother. ...and fruitful words ..
😊 of course. ...as you say. ..actually , I appreciate your feedback. .
Withkind regards. . ☺ 🌺 🌺 Nadhim
Plasma is a term which refers to the fully ionized gas composed of various substances such as
photons and free electrons, along with atoms in excited state having a neutral charge. Plasma has a net charge of zero
due to its equal number of positive and negative ions.Plasma consists of two types of
species, light (photons) and heavy (all the other constituents). For retaining such particular property, it is regarded
as plasma is regarded as the fourth state of matter which starts from solid to liquid state, liquid to gas and finally to
plasma.
In general plasma is classified into two types: thermal and non-thermal plasma is differentiated
based on generation mechanism. Thermal plasma generation requires high pressure and temperature with heavy
electrons. Non-thermal or near ambient temperature plasma (NTP) is generated under atmospheric or vacuum at
temperatures of 30-60°C requiring low energy. NTP can be formed by electrifying or using electromagnetic waves
on gas at reduce pressure, having a thermodynamically non-equilibrium nature. There are some typical approaches
in creation of plasma at atmospheric pressure, consists of dielectric barrier discharge, corona discharge and gliding
arc discharge, which are of kin interest in food industries requires mild conditions .