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Kordas, K.; Bortfeldt, J.; Brunbauer, F.; David, C.; Desforge, D.; Fanourakis, G.; Franchi, J.; Gallinaro, M.; García, F.; Giomataris, I.; González-Díaz, D.; Gustavsson, T.; Guyot, C.; Iguaz, F.J.; Kebbiri, M.; Legou, P.; Liu, J.; Lupberger, M.; Maillard, O.; Maniatis, I.; Manthos, I.; Müller, H.; Niaouris, V.; Oliveri, E.; Papaevangelou, T.; Paraschou, K.; Pomorski, M.; Qi, B.; Resnati, F.; Ropelewski, L.; Sampsonidis, D.; Schneider, T.; Schwemling, P.; Sohl, L.; van Stenis, M.; Thuiner, P.; Tsipolitis, Y.; Tzamarias, S.E.; Veenhof, R.; Wang, X.; White, S.; Zhang, Z.; Zhou, Y.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 04/2020, Volume: 958Journal Article
This contribution describes the PICOSEC-Micromegas detector which achieves a time resolution below 25ps. In this device the passage of a charged particle produces Cherenkov photons in a radiator, which then generate electrons in a photocathode and these photoelectrons enter a two-stage Micromegas with a reduced drift region and a typical anode region. The results from single-channel prototypes (demonstrating a time resolution of 24ps for minimum ionizing particles, and 76ps for single photoelectrons), the understanding of the detector in terms of detailed simulations and a phenomenological model, the issues of robustness and how they are tackled, and preliminary results from a multi-channel prototype are presented (demonstrating that a timing resolution similar to that of the single-channel device is feasible for all points across the area covered by a multi-channel device).
