Plasma Discharge Principle

　　 In the 1920 ， Mr. Langmuir research the PLASMA issue. In 1929, Mr. Langmuir use this word 「 plasma 」 to describe the phenomenon of ion gas. PLASMA means a part of the gas which has be ionize. The gas carry with the ion which has positive electric charge, and the electron carry with the negative electric discharge and the atom and molecule which has no electric. The PLASMA generates depends on the electron speed inside the electric field, and the electron strike the atom or molecule which has great power to become ion react. The gas atom or molecule separate as two kinds of electron. One of it carry with positive electric and the other one is the original electron. This separate react will increase two freedom electron, and the procedure repeat to create as double. This kind of chain react will make the gas become plasma inside the react area. The original stage of gas plasma stage, the gas separate speed faster than the electron and ion combine as neutral gas. When the separate speed and the combine speed become the same. The electron and ion concentration which inside the plasma was fixed, and generate as balance status which can stable the plasma. If increase the high temperature or speed the electron or ion power of material, then the neutral material will through the encourage, breaking dissociation, ionize..etc react to generate the molecules, atoms,excited species, electrons, positive ion, free radical, Uv light, visible light. Above the material mixed together the status means plasma. The plasma calls the “Fourth Stage” of material because of it is different as solid state, liquid state, gas stage.