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The Gigatracker, the silicon beam tracker for the NA62 experiment at CERN

Research output: Contribution to journalJournal article

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  • L. Federici
  • G. Aglieri Rinella
  • D. Alvarez Feito
  • R. Arcidiacono
  • C. Biino
  • S. Bonacini
  • A. Ceccucci
  • S. Chiozzi
  • E. Cortina Gil
  • A. Cotta Ramusino
  • J. Degrange
  • M. Fiorini
  • E. Gamberini
  • A. Gianoli
  • J. Kaplon
  • A. Kleimenova
  • A. Kluge
  • A. Mapelli
  • F. Marchetto
  • E. Migliore
  • E. Minucci
  • M. Morel
  • J. Noël
  • M. Noy
  • L. Perktold
  • M. Perrin-Terrin
  • P. Petagna
  • F. Petrucci
  • K. Poltorak
  • G. Romagnoli
  • B. Velghe
  • H. Wahl
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Article number162127
<mark>Journal publication date</mark>1/04/2020
<mark>Journal</mark>Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume958
Number of pages4
Publication statusPublished
Early online date27/04/19
Original languageEnglish

Abstract

The Gigatracker is the NA62 beam tracker. It is made of three 63.1mm×29.3mm stations of 300μm×300μm hybrid silicon pixel detectors installed in vacuum (∼10 −6 mbar). The beam particles, flowing at 750MHz, are traced in 4-dimensions by mean of time-stamping pixels with a design resolution of 200ps. This performance has to be maintained despite the beam irradiation amounting to a yearly fluence of 2×10 14 1MeVn eq ∕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) micro-channels cooling. We will describe the detector design and performances during the NA62 runs.