CERN Accelerating science

Published Articles
Title	4th dimensional tracking: the GigaTracker of the NA62 experiment
Author(s)	Migliore, Ernesto (INFN, Turin ; Turin U.) ; Cortina Gil, E (Louvain U.) ; Minucci, E (Louvain U.) ; Perrin-Terrin, M (Louvain U.) ; Velghe, B (Louvain U.) ; Chiozzi, S (INFN, Ferrara ; Ferrara U.) ; Cotta Ramusino, A (INFN, Ferrara ; Ferrara U.) ; Fiorini, M (INFN, Ferrara ; Ferrara U.) ; Gianoli, A (INFN, Ferrara ; Ferrara U.) ; Petrucci, F (INFN, Ferrara ; Ferrara U.) ; Wahl, H (INFN, Ferrara ; Ferrara U.) ; Arcidiacono, R (INFN, Turin ; Turin U. ; Piemonte Orientale U., Novara) ; Biino, C (INFN, Turin ; Turin U.) ; Marchetto, F (INFN, Turin ; Turin U.) ; Aglieri Rinella, G (CERN) ; Alvarez Feito, D (CERN) ; Bonacini, S (CERN) ; Ceccucci, A (CERN) ; Degrange, J (CERN) ; Gamberini, E (CERN) ; Kaplon, J (CERN) ; Kluge, A (CERN) ; Mapelli, A (CERN) ; Morel, M (CERN) ; Noël, J (CERN) ; Noy, M (CERN) ; Perktold, L (CERN) ; Petagna, P (CERN) ; Poltorak, K (CERN) ; Romagnoli, G (CERN) ; Ruggiero, G (CERN)
Publication	SISSA, 2018
Number of pages	9
In:	PoS Vertex 2017 (2018) 027
In:	The 26th International Workshop on Vertex Detectors, Las Caldas, Spain, 10 - 15 Sep 2017, pp.027
DOI	10.22323/1.309.0027
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN SPS ; NA62
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 $K^+\rightarrow \pi^+\nu\bar{\nu}$ 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.
Copyright/License	publication: (License: CC-BY-NC-ND-4.0)

Corresponding record in: Inspire