Charged particle timing at sub-25 picosecond precision: the PICOSEC detection concept
Abstract
The PICOSEC detection concept consists in a "two-stage" Micromegas detector coupled to a Cherenkov radiator and equipped with a photocathode. A proof of concept has already been tested: a single-photoelectron response of 76 ps has been measured with a femtosecond UV laser at CEA/IRAMIS, while a time resolution of 24 ps with a mean yield of 10.4 photoelectrons has been measured for 150 GeV muons at the CERN SPS H4 secondary line. This work will present the main results of this prototype and the performance of the different detector configurations tested in 2016-18 beam campaigns: readouts (bulk, resistive, multipad) and photocathodes (metallic+CsI, pure metallic, diamond). Finally, the prospects for building a demonstrator based on PICOSEC detection concept for future experiments will be discussed. In particular, the scaling strategies for a large area coverage with a multichannel readout plane, the R\&D on solid converters for building a robust photocathode and the different resistive configurations for a robust readout.
Cite
@article{arxiv.1806.04395,
title = {Charged particle timing at sub-25 picosecond precision: the PICOSEC detection concept},
author = {F. J. Iguaz and J. Bortfeldt and F. Brunbauer and C. David and D. Desforge and G. Fanourakis and J. Franchi and M. Gallinaro and F. García and I. Giomataris and D. González-Díaz and T. Gustavsson and C. Guyot 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:1806.04395},
year = {2019}
}
Comments
4 pages, 7 figures, proceedings of the 14th Pisa Meeting on Advanced Detectors (PM2018), submitted to Nucl. Instr. Meth. A; version 2: 2 figures modified, minor changes in the text