Study of timing properties of single gap high-resistive bakelite RPC

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Presentation transcript:

Study of timing properties of single gap high-resistive bakelite RPC Block diagram for Time Resolution measurement Time spectra of RPC P/S 7186 TDC is used RPC dimension: 30 cm × 30 cm TDC Start: Master trigger (3 fold scintillator) TDC Stop: Signal from RPC Time resolution of RPC at plateau region ~ 2 ns Average arrival time decreases with increasing high voltage

For operation in streamer mode Main goal of the study To construct large bakelite RPC without linseed oil coating for the experiment at India-based Neutrino Observatory (INO) & For operation in streamer mode Summary and Outlook Time resolution of several small (30 cm × 30 cm) silicone coated RPC prototypes were measured in streamer mode using a common start TDC The START signal was taken from the scintillators and the STOP signal was obtained from the RPC pick-up strips Average time resolution at plateau region ~ 2.48 ± 0.08 ns for the smaller (30 cm × 30 cm) RPC Average signal arrival time deceases with high voltage One of the modules was tested continuously for more than 130 days. Stable time resolution (2.40 ± 0.12 ns) with average signal arrival time 54.70 ± 1.12 ns obtained. Time resolution between two RPCs ~ 3 ns. Average time resolution of large (1 m × 1 m) RPC ~ 5 ns.