Calculation of plasma current fluctuation under the effect of voltage variation with fixed temperature using double probe data

Abstract

When the plasma particles posses a surplus energy, the plasma fluctuates to reduce this energy. Fluctuation may also occur as a result of density gradation or a temperature change due to the application of a magnetic field. Since the fluctuations are responsible of the particle loss, they may be considered as a great part of energy loss case. It has been found that the behavior of the probe characteristic curve of the current fluctuation dose not resembles that of the natural curve of the probe current. That means reading the fluctuation of current probe is influenced by fixing temperature.