The Timepix4 beam telescope
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment2025Vol. 1084, pp. 171234–171234
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K. Carvalho Akiba, J. Alozy, D. Bacher, R. Ballabriga, Federico de Benedetti, M. van Beuzekom, V. van Beveren, T. Bischoff, H. Boterenbrood, W. Byczynski, M. Campbell, Evridki Chatzianagnostou, V. Coco, P. Collins, E. Dall’Occo, R. Dumps, T. Evans, Antonio Fernández Prieto, M. Fransen, A. Gallas Torreira, R. Gao, R. E. Geertsema, F. Gonçalves Abrantes, V. Gromov, M.M. Halvorsen, B. van der Heijden, K. Heijhoff, M. John, D. Johnson, U. Kraemer, E. Lemos Cid, X. Llopart, M. J. Madurai, D. Oppenhuis, T. Pajero, E. Rodríguez Rodríguez, D. L. Rolf, Andrej Sarnatskiy, H. Schindler, P. Vázquez Regueiro, A. Vitkovskiy, M. J. Williams, G. Wang
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 ± 0.1 μm and 2.4 ± 0.1 μm 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 ± 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.