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The LHCb VELO Upgrade Module Construction
K. Akiba, M. Alexander, C. Bertella +84
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC…
Reconstruction of charged tracks with Timepix4 ASICs
Kazu Akiba, Martin van Beuzekom, Vincent van Beveren +15
The design of a detector system comprised of four silicon sensors bump-bonded to Timepix4 ASICs is described together with its data acquisition system, operational infrastructure,…
Measurement of thermal properties of the LHCb VELO detector using track-based software alignment
The LHCb VELO group
The thermal properties of the LHCb Vertex Locator (VELO) are studied using the real-time detector alignment procedure. The variation of the position and orientation of the detector…
Timing performance of the Timepix4 front-end
K. Heijhoff, K. Akiba, R. Ballabriga +7
A characterisation of the Timepix4 pixel front-end with a strong focus on timing performance is presented. Externally generated test pulses were used to probe the per-pixel time-to…
Spatial resolution and efficiency of prototype sensors for the LHCb VELO Upgrade
E. Buchanan, K. Akiba, M. van Beuzekom +15
A comprehensive study of the spatial resolution and detection efficiency of sensor prototypes developed for the LHCb VELO upgrade is presented. Data samples were collected at the C…
Timing measurements with a 3D silicon sensor on Timepix3 in a 180 GeV/c hadron beam
K. Heijhoff, K. Akiba, R. Bates +9
Test beam measurements have been carried out with a 3D sensor on a Timepix3 ASIC and the time measurements are presented. The measurements are compared to those of a thin planar se…
LHCb VELO Timepix3 Telescope
Kazu Akiba, Martin van Beuzekom, Henk Boterenbrood +30
The LHCb VELO Timepix3 telescope is a silicon pixel tracking system constructed initially to evaluate the performance of LHCb VELO Upgrade prototypes. The telesope consists of eigh…
Mapping the material in the LHCb vertex locator using secondary hadronic interactions
M. Alexander, W. Barter, A. Bay +63
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identify…
A GEANT4 based Simulation for Pixelated X-ray Hybrid Detectors: Extended Report
F. Marinho, K. Akiba
Monte Carlo simulations are powerful tools for understanding the effects of radiation interactions within detector devices allowing not only to evaluate typical estimates for exper…
The Timepix Telescope for High Performance Particle Tracking
Kazuyoshi Akiba, Per Arne Ronning, Martin van Beuzekom +32
The Timepix particle tracking telescope has been developed as part of the LHCb VELO Upgrade project, supported by the Medipix Collaboration and the AIDA framework. It is a primary…