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+ -> pi+ nu nubar at the CERN SPS. The detector tracks charged particles in a 75 GeV/c hadron beam with a flux reaching 1.3 MHz/mm2. It consists of three stations, 61x27 mm2 each, which provide single hit timing with 130 ps resolution. Each station is composed of a 200 um thick planar silicon sensor, segmented in 300x300 um2 pixels, bump-bonded to 2x5 custom 100 um thick ASIC, called TDCPix. Each TDCPix contains 40x45 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 C6F14 circulating through micro-channels etched inside silicon plates a few hundred microns thick. The total material budget is less than 0.5% X0 per station. Detector description, operational experience and performance from the NA62 experimental run in 2016, at about 30% the nominal beam intensity, are presented.

4th dimensional tracking: the GigaTracker of NA62 experiment

Migliore, Ernesto;
2018-01-01

Abstract

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+ -> pi+ nu nubar at the CERN SPS. The detector tracks charged particles in a 75 GeV/c hadron beam with a flux reaching 1.3 MHz/mm2. It consists of three stations, 61x27 mm2 each, which provide single hit timing with 130 ps resolution. Each station is composed of a 200 um thick planar silicon sensor, segmented in 300x300 um2 pixels, bump-bonded to 2x5 custom 100 um thick ASIC, called TDCPix. Each TDCPix contains 40x45 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 C6F14 circulating through micro-channels etched inside silicon plates a few hundred microns thick. The total material budget is less than 0.5% X0 per station. Detector description, operational experience and performance from the NA62 experimental run in 2016, at about 30% the nominal beam intensity, are presented.
2018
VERTEX 2017
Las Caldas (Spain)
10-15 settembre 2017
027
035
Migliore, Ernesto; Cortina Gil, E.; Minucci, E.; Perrin-Terrin, M.; Velghe, B.; Chiozzi, S.; Cotta Ramusino, A.; Fiorini, M.; Gianoli, A.; Petrucci, F.; Wahl, H.; Arcidiacono, R.; Biino, C.; Marchetto, F.; Aglieri Rinella, G.; Alvarez Feito, D.; Bonacini, S.; Ceccucci, A.; Degrange, J.; Gamberini, E.; Kaplon, J.; Kluge, A.; Mapelli, A.; Morel, M.; Noël, J.; Noy, M.; Perktold, L.; Petagna, P.; Poltorak, K.; Romagnoli, G.; Ruggiero, G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1767260
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