Publication: Progress on the PICOSEC-micromegas detector development: Towards a precise timing, radiation hard, large-scale particle detector with segmented readout
Date
Authors
Veenhof, Rob
Authors
Kordas, K.
Bortfeldt, J.
Brunbauer, F.
David, C.
Desforge, D.
Fanourakis, G.
Franchi, J.
Gallinaro, M.
Garcia, F.
Giomataris, I.
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Elsevier
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Abstract
This contribution describes the PICOSEC-Micromegas detector which achieves a time resolution below 25 ps. 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 24 ps for minimum ionizing particles, and 76 ps 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).
Description
Bu çalışma, 18-22, Şubat 2019 tarihlerinde Vienna[Avusturya]’da düzenlenen 15. Vienna Conference on Instrumentation (VCI) Kongresi‘nde bildiri olarak sunulmuştur.
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Keywords
Picosecond timing, MPGD, Micromegas, Photocathodes, Cherenkov radiators, Timing algorithms, Instruments & instrumentation, Nuclear science & technology, Physics