High Voltage Power Supply for RPC detectors

A High Voltage Power Supply Unit (HVPSU) for biasing resistive plate chamber (RPC) detector has been developed for initial testing of the RPC prototypes. The unit, based on inexpensive encapsulated DC–DC converters, is capable of delivering positive and negative polarity independently adjustable high voltages to the detector. The HVPSU is overload protected and displays the output voltage and current loading in both channels. Test performance of the unit with a 300 × 300 mm single gap RPC detector is reported.