PICOSEC: Charged particle timing at sub-25 picosecond precision with a Micromegas based detector
Abstract
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 at high rates. The required accuracy follows directly from the nominal interaction distribution within a bunch crossing ( cm, ps). A time resolution of the order of 20-30 ps would lead to significant reduction of these backgrounds. With this goal, we present a new detection concept called PICOSEC, which is based on a "two-stage" Micromegas detector coupled to a Cherenkov radiator and equipped with a photocathode. First results obtained with this new detector yield a time resolution of 24 ps for 150 GeV muons, and 76 ps for single photoelectrons.
Keywords
Cite
@article{arxiv.1712.05256,
title = {PICOSEC: Charged particle timing at sub-25 picosecond precision with a Micromegas based detector},
author = {J. Bortfeldt and F. Brunbauer and C. David and D. Desforge and G. Fanourakis and J. Franchi and M. Gallinaro and I. Giomataris and D. González-Díaz and T. Gustavsson and C. Guyot and F. J. Iguaz and M. Kebbiri and P. Legou and J. Liu and M. Lupberger and O. Maillard and I. Manthos and H. Müller and V. Niaouris and E. Oliveri and T. Papaevangelou and K. Paraschou and M. Pomorski and B. Qi and F. Resnati and L. Ropelewski and D. Sampsonidis and T. Schneider and P. Schwemling and L. Sohl and M. van Stenis and P. Thuiner and Y. Tsipolitis and S. E. Tzamarias and R. Veenhof and X. Wang and S. White and Z. Zhang and Y. Zhou},
journal= {arXiv preprint arXiv:1712.05256},
year = {2018}
}
Comments
27 pages, 15 figures, preprint submitted to Nuclear Instruments and Methods A, v2: typos fixed and an improved discussion, v3: revised version