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T979 (~10) Picosec timing: LBQ = L-bar Quartz Cherenkov radiator 30mm and 40 mm bars, each 3mm x 3mm. Light up light guide bars to Hamamatsu SiPMs MPPC S10943.(Sergey Los). SiPMs. p (120 GeV ). 2 boxes like this, so 4-in-line bars at at time. 2mm x 2mm trigger counter. PMT240
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T979 (~10) Picosec timing: LBQ = L-bar Quartz Cherenkov radiator 30mm and 40 mm bars, each 3mm x 3mm. Light up light guide bars to Hamamatsu SiPMs MPPC S10943.(Sergey Los) SiPMs p (120 GeV) 2 boxes like this, so 4-in-line bars at at time
2mm x 2mm trigger counter PMT240 MCP, ref time Two L-Bar Quartic boxes Beam, 120 GeVp
Scope traces (5 GHz, 200ps/pt) 3 bars with PMT240 (bottom) 2 ns/div & 20mV/div Without clipping Capacitance With clipping Capacitance Rise times < 1 ns, good.