Retarding Potential Analyzer for Plasma Applications AARC RPA-1
A Retarding Potential Analyzer (RPA) is an advanced plasma diagnostic used to measure the source plasma ion energy distribution. It involves a multi-gridded system to shield out electrons and allows the user to select discriminating ranges of ion energies. The design allows for a wide range of custom plasma properties and intermittent elevated temperature.
The very low currents measured require the additional use of Ad Astra's TZAP-111 pre-amplifier. Custom mounting options are available. Analysis software is available separately.
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Screenshot of RPA Analysis Graphical User Interface