A METHOD FOR THE ION DENSITY-ESTIMATION FROM THE DOUBLE PROBE DATA AT MEDIUM AND HIGHER PRESSURES

In this article a method of estimation of the positive ion density from the double probe data is developed. In the presented method we suggest to use the single probe collisional model developed in [10]. The method itself can, however, use any ion electron collection model and the pressure range of applicability of the method will then depend on the range of pressures within which the used particle collection model is valid. The application of the developed method is demonstrated on a sample of experimental double probe data and the ion density determined from these data is compared to the electron density estimated independently using the microwave diagnostic technique.