4th dimensional tracking: the GigaTracker of NA62 experiment

Autor: J. Degrange, J. Kaplon, M. Perrin-Terrin, F. Marchetto, E. Cortina Gil, Paolo Petagna, B. Velghe, G. Ruggiero, L. Perktold, M. Morel, M. Noy, Roberta Arcidiacono, S. Chiozzi, A. Cotta Ramusino, G. Aglieri Rinella, M. Fiorini, K. Poltorak, E. Minucci, S. Bonacini, J. Noël, Fabrizio Petrucci, G. Romagnoli, Alexander Kluge, H. D. Wahl, D. Alvarez Feito, A. Gianoli, Ernesto Migliore, A. Ceccucci, E. Gamberini, Cristina Biino, A. Mapelli
Přispěvatelé: Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: PoS
26th International Workshop on Vertex Detectors
26th International Workshop on Vertex Detectors, Sep 2017, Las Caldas, Spain. pp.027, ⟨10.22323/1.309.0027⟩
Scopus-Elsevier
Popis: International audience; The GigaTracker is a lightweight hybrid silicon pixel detector built for the NA62 experiment at CERN, which aims at measuring the branching fraction of the ultra-rare kaon decay $K^+\rightarrow \pi^+\nu\bar{\nu}$ at the CERN SPS. The detector tracks charged particles in a 75 GeV/$c$ hadron beam with a flux reaching 1.3 MHz/mm$^2$. It consists of three stations, 61$\times$27 mm$^2$ each, which provide single-hit timing with 130 ps resolution. Each station is composed of a 200 $\mu$m thick planar silicon sensor, segmented in 300$\times$300 $\mu$m$^2$ pixels, bump-bonded to 2$\times$5 custom 100 $\mu$m thick ASIC, called TDCPix. Each TDCPix contains 40$\times$45 asynchronous pixels, and is instrumented with 360 pairs of time-to-digital converter channels with 100 ps bin. The three stations are installed in vacuum (about 10$^{-6}$ mbar) and cooled with liquid $\mathrm{C_6F_{14}}$ circulating through micro-channels etched inside silicon plates a few hundred microns thick. The total material budget is less than 0.5% $X_0$ per station. Detector description, operational experience and performance from the NA62 experimental run in 2016, at about 30% the nominal beam intensity, will be presented.
Databáze: OpenAIRE