Speaker
Mathieu Perrin-Terrin
(Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
Description
The Gigatracker is the NA62 beam tracker. It is made of three 63.1 mm $\times$ 29.3 mm stations of 300 $\mu$m $\times$ 300 $\mu$m hybrid silicon pixel detectors installed in vacuum ($\sim10^{-6}$mbar).
The beam particles, flowing at 750 MHz, are traced in 4-dimensions by means of time-stamping pixels with a design resolution of 200 ps. This performance has to be maintained despite the beam irradiation amounting to a yearly fluence of $2 \times 10^{14}~1\,\rm{MeV~eq.~n /cm^{2}}$.
The detector material minimization is paramount, as the detector faces the full beam. The station material budget is reduced to 0.5\% $X_0$ by using (HEP world first) microchannels cooling.
We will describe the detector design and performances during the NA62 runs.
Primary author
Mathieu Perrin-Terrin
(Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
