PICOSEC: Charged particle timing at sub-25 picosecond precision with a Micromegas based detector
作者： F.J. Iguaz , M. van Stenis , L. Ropelewski , M. Pomorski , P. Thuiner
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摘要: The prospect of pileup induced backgrounds at the High Luminosity LHC (HL-LHC) has stimulated intense interest in developing technologies for charged particle detection with accurate timing high rates. required accuracy follows directly from nominal interaction distribution within a bunch crossing ($\sigma_z\sim5$ cm, $\sigma_t\sim170$ ps). A time resolution order 20-30 ps would lead to significant reduction these backgrounds. With this goal, we present new concept called PICOSEC, which is based on "two-stage" Micromegas detector coupled Cherenkov radiator and equipped photocathode. First results obtained yield 24 150 GeV muons, 76 single photoelectrons.
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