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The Timepix4 Beam Telescope

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arxiv 2503.15207 v1 pith:HAH7OKC6 submitted 2025-03-19 hep-ex

classification hep-ex
keywords telescopebeammathrmresolutionsystemtemporaltimepix4acquisition
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The spatial and temporal performance of a telescope system comprising planar silicon sensors bump-bonded to Timepix4-v2 ASICs are assessed at the CERN SPS using a $180$~GeV/$c$ mixed hadron beam. The pointing resolution at the centre of the telescope is $2.3 \pm 0.1\;\mathrm{\mu m}$ and $2.4 \pm 0.1\mathrm{\mu m}$ in x and y directions, respectively. The temporal resolution for the combined timestamps on a track using only the information from the Timepix4 planes is found to be $92 \pm 5$~ps. The telescope is extensively described including its data acquisition system and dedicated software as well as the corrections applied to the raw measurements.

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