24-28 February 2020
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone

Precise charged particle timing with the PICOSEC detection concept

26 Feb 2020, 09:50
Contributed Oral Timing detectors Timing detectors


Florian Brunbauer (CERN)


Precise timing at the level of a few 10ps is a key requirement for unambiguous 4D track reconstruction in future high-luminosity HEP experiments. The PICOSEC detection concept developed in the context of the RD51 collaboration aims to provide precise charged particle timing with a Micromegas detector coupled to a Cherenkov radiator with a photocathode. An excellent timing resolution of 24ps for MIPs was achieved with this concept with a single-pad prototype with a CsI photocathode. Muon beam tests, laser studies as well as detailed simulations have been used to understand the timing characteristics of this detector. Ongoing developments towards larger detectors capable of operating in high particle flux environments include multi-channel PICOSEC modules, resistive Micromegas and robust photocathode materials. Multi-pad prototypes have been shown to preserve the timing capabilities even for the case of signal sharing across multiple pads and spark-resistant resistive Micromegas have been operated in particle beams achieving comparable timing performance. Alternative photocathode materials including diamond-like carbon (DLC), boron carbide and pure metals are studied to replace CsI in harsh ion backflow conditions. The progress and developments towards robust large-area PICOSEC detectors for precise timing applications in future experiments will be presented.

Primary author


Claude Guyot (IRFU, CEA, Université Paris-Saclay) Daniel Desforge (IRFU, CEA, Université Paris-Saclay) David Claude (CERN) Dimos Sampsonidis (Aristotle University of Thessaloniki) Emmanuel Scorsone (CEA-LIST, Diamond Sensors Laboratory) Eraldo Oliveri (CERN) Filippo Resnati (CERN) Francisco García (University of Helsinki) Francisco Jose Iguaz (IRFU, CEA, Université Paris-Saclay) Georgios Fanourakis (NCSR Demokritos) Hans Müller (CERN) Ioanis Giomataris (IRFU, CEA, Université Paris-Saclay) Ioannis Manthos (Aristotle University of Thessaloniki) Jianbei Liu (University of Science and Technology of China) Jona Bortfeldt (CERN) Konstantinos Paraschou (Aristotle University of Thessaloniki) Kostas Kordas (Aristotle University of Thessaloniki) Leszek Ropelewski (CERN) Lukas Sohl (IRFU, CEA, Université Paris-Saclay) Mariam Kebbiri (IRFU, CEA, Université Paris-Saclay) Michael Lupberger (CERN) Michal Pomorski (CEA-LIST, Diamond Sensors Laboratory) Michele Gallinaro (LIP Lisbon) Miranda van Stenis (CERN) Patrik Thuiner (CERN) Philippe Legou (IRFU, CEA, Université Paris-Saclay) Philippe Schwemling (IRFU, CEA, Université Paris-Saclay) Sebastian White (CERN) Spyros Tzamarias (Aristotle University of Thessaloniki) Thomas Gustavsson (LIDYL, CEA-Saclay, CNRS, Université Paris-Saclay) Thomas Papaevangelou (IRFU, CEA, Université Paris-Saclay) Thomas Schneider (CERN) Vasileios Niaouris (Aristotle University of Thessaloniki) Veenhof Rob (RD51 collaboration, CERN) Xu Wang (University of Science and Technology of China) Yi Zhou (University of Science and Technology of China) Yorgos Tsipolitis (National Technical University of Athens) Zhiyong Zhang (University of Science and Technology of China)

Presentation Materials