In this article we describe new experimental device which is currently in construction. In this device, the hollow cathode radiofrequency (RF) low pressure discharge in the mixture of Ar with I2 vapors will be investigated by Langmuir probe.
This work is loosely connected to the research of the oxygen-iodine laser at the Institute of Physics AS in Prague, where the RF discharge in mixtures containing iodine donors (molecules CH3I and CF3I) is currently investigated [Schmiedberger et al., 2008]. In this article the new experimental device and its current state of construction are described together with the necessary theory and future plans of the experiments.