Speaker
Description
Resistive Plate Chamber (RPC) detectors are currently used in High Energy Physics (HEP) experiments for triggering and tracking purposes for their low-cost of fabrication, high efficiency (> 90%) and good time resolution (∼ 1-2 ns). RPC is also a potential candidate for high-resolution medical imaging.
Keeping in mind, the requirements of detectors having high-rate handling capability, cost-effectiveness, and large area coverage, to be used in future HEP experiments, commercially available bakelite plates with moderate bulk resistivity are used to build RPC prototypes.
A RPC prototype is built using indigenous bakelite sheet and the inner sides of the electrode plates are coated with linseed oil using a new technique. The newly built detector is tested with 100% Tetrafluoroethane (C2H2F4) and efficiency plateau ∼95% from 9.4 kV onwards and ∼85% from 10.1 kV onwards are obtained for the -15 mV and -20 mV discriminator threshold settings respectively.
The chamber is recently tested with conventional 90% Tetrafluoroethane (C2H2F4) and 10% Isobutane (iC4H10) gas mixture. The HV conditioning with time of the chamber is also studied with the conventional gas mixture. The new results will be presented.
