In-situ Mass-spectrometry of Magnetized Plasmas

To improve mass resolution the mass-spectrometer of magnetized plasmas (MSMP) developed in MEPhI was modified and installed on the linear plasma device PSI-2 (Juelich). MSMP is based on a classical scheme of static 180 magnetic mass-spectrometer, which uses magnetic field of plasma device for a mass-to-charge ion separation. It allows monitoring plasma parameters and measure relative fluxes of plasma ions. Mass-spectra of typical discharge regimes are presented. In addition, to increase efficiency of heavy ions detection an upgrade for MSMP was suggested.