Investigation of Plasma Parameters in a Duopigatron Using a Langmuir Probe

To design an extraction electrode system for a duopigatron ion source, the SNOW [1] computer simulation has been used. Plasma parameters such as electron and ion current density, electron and ion temperatures are used in the SNOW. We have designed and constructed a Langmuir probe to investigate the plasma parameters in a duopigatron ion source. The probe has been designed in such a way that the plasma can be sampled through the source aperture. This paper will discuss some of the source´s parameters, the Langmuir probe design and the plasma parameters of the source.