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 (∼10−6mbar). 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 2×10141MeVneq∕cm2. The detector material minimization is paramount, as the detector faces the full beam. The station material budget is reduced to 0.5%X0 by using (HEP world first) micro-channels cooling. We will describe the detector design and performances during the NA62 runs.
| Original language | English |
|---|---|
| Article number | 162127 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 958 |
| DOIs | |
| Publication status | Published - 1 Apr 2020 |
Keywords
- GTK
- Gigatracker
- Hybrid silicon detector
- Material budget
- Micro-channels cooling
- NA62
- Pixel detector
- Silicon detector
- Time resolution
- Tracking detector
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