CERN - European Organization for Nuclear Research - Physics Department - NA62

GTK

The Gigatracker (GTK) is designed to track the incoming beam particles. Further information can be found below:

Aim: measure time, direction, and momentum of all the beam tracks (~ 109/sec)

Three stations in vacuum of Si-pixel (300x300) mm, 200 mm thick, p-in-n

gtk

Station schematic

gtk

  • 18000 pixel/station- dimensions: (60x27) mm2
  • 10 ASIC chips bump-bonded to the sensor

Performances:

  • Time resolution: 200 ps/station (rms)
  • Angle resolution: 14 mrad (rms)
  • Momentum resolution: 0.2%