LHCb VELO Timepix3 telescope

Akiba, K. Carvalho; Beuzekom, M. van; Boterenbrood, H.; Buchanan, E.; Buytaert, J.; Vidal, X. Cid; Collins, P.; Dall’Occo, E.; Suárez, A. Dosil; Dumps, Raphael; Lima, V. Franco; Torreira, A. Gallas; Pardiñas, J. García; Heijden, Bas van der; Hombach, C.; John, M.; Kulis, Szymon; Cudie, X. Llopart; Marinho, F.; Price, E.; Richards, S.; Pérez, P. Rodríguez; Saunders, D. M.; Folkestad, Åsmund; Schindler, H.; Schreuder, F.; Snoek, H.; Tsopelas, P.; Velthuis, J. J.; Diaz, M. Vieites; Williams, Mark Richard James

doi:10.1088/1748-0221/14/05/p05026

Cited by 17 publications

(37 citation statements)

References 14 publications

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“…6. The intrinsic accuracy of the telescope planes measured using 8 detector planes [28] is about 5 μm. The average telescope plane accuracy obtained in our measurements is about 8 μm.…”

Section: Particle Cluster Position Accuracymentioning

confidence: 99%

“…The tested Timepix3 detector was implemented as a part of the LHCb VELO test beam telescope [27,28]. The LHCb VELO Timepix3 telescope is a silicon pixel tracking system initially built to evaluate the performance of LHCb VELO Upgrade prototypes.…”

Section: Test Beam Setupmentioning

confidence: 99%

“…The difference is explained by the fact that the residual distribution is defined by the intrinsic accuracy of each detector plane, by their alignment precision and by the track reconstruction accuracy. Last two components are larger in our case because only 3 detector planes are used for the track reconstruction while in [28] 8 detector planes were used. On the front sensor, the measured track-cluster residual distribution has a sigma of 15.7 μm (right plot of Fig.…”

Section: Particle Cluster Position Accuracymentioning

confidence: 99%

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Studies of the spectral and angular distributions of transition radiation using a silicon pixel sensor on a Timepix3 chip

Alozy

Belyaev

Campbell

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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X-ray transition radiation detectors (TRDs) are used for particle identification in both high energy physics and astroparticle physics. In most of the detectors, emission of the X-ray transition radiation (TR) starts at Lorentz factors above ∼ 500 and reaches saturation at ∼ 2 ÷ 3 ⋅ 10 3 . However, many experiments require particle identification up to ∼ 10 5 , which is very difficult to achieve with conventional detectors. Semiconductor pixel detectors offer a unique opportunity for precise simultaneous measurements of spectral and angular parameters of TR photons. Test beam studies of the energy and the angular distributions of TR photons emitted by electrons and muons of different momenta crossing several types of radiators were performed at the CERN SPS with a 480 μm thick silicon detector bonded to a Timepix3 chip. High resolution images of the − phase space of the TR produced by different radiators were obtained and compared with MC simulations. The characteristic interference patterns are in agreement with the theoretical models with an unprecedented level of details. The studies presented in this paper also show that simultaneous measurements of both the energy and the emission angles of the TR X-rays could be used to enhance the particle identification performances of TRDs.

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“…6. The intrinsic accuracy of the telescope planes measured using 8 detector planes [28] is about 5 μm. The average telescope plane accuracy obtained in our measurements is about 8 μm.…”

Section: Particle Cluster Position Accuracymentioning

confidence: 99%

Section: Test Beam Setupmentioning

confidence: 99%

Section: Particle Cluster Position Accuracymentioning

confidence: 99%

See 1 more Smart Citation

Studies of the spectral and angular distributions of transition radiation using a silicon pixel sensor on a Timepix3 chip

Alozy

Belyaev

Campbell

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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“…The former is registered with a Time-to-Digital Converter (TDC) with a bin width of 1.56 ns. The latter is related to the energy deposited and is converted into equivalent units of collected electrons via a charge calibration process, as described in reference [12]. More details on the Timepix3 ASIC can be found in table 2.…”

Section: Detector Assemblies Under Studymentioning

confidence: 99%

“…The beam is a mixed charged hadron beam (∼ 67% protons, ∼ 30% pions) at 180 GeV/c. The trajectories of particles are reconstructed with the Timepix3 telescope [12], a high rate, data-driven beam telescope, composed of two arms of four planes each. Each plane is instrumented with a 300 μm p-on-n silicon sensor bump-bonded to a Timepix3 ASIC.…”

Section: Test Beam Campaignmentioning

confidence: 99%

Temporal characterisation of silicon sensors on Timepix3 ASICs

et al. 2021

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The timing performance of silicon sensors bump-bonded to Timepix3 ASICs is investigated, prior to and after different types of irradiation up to 8 × 1015 1 MeV neq cm−2. The sensors have been tested with a beam of charged particles in two different configurations, perpendicular to and almost parallel to the incident beam. The second approach, known as the grazing angles method, is shown to be a powerful method to investigate not only the charge collection, but also the time-to-threshold properties as a function of the depth at which the charges are liberated.

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Timing performance of the LHCb VELO Timepix3 Telescope

et al. 2020

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We performed a detailed study of the timing performance of the LHCb VELO Timepix3 Telescope with a 180 GeV/c mixed hadron beam at the CERN SPS. A twofold method was developed to improve the resolution of single-plane time measurements, resulting in a more precise overall track time measurement. The first step uses spatial information of reconstructed tracks in combination with the measured signal charge in the sensor to correct for a mixture of different effects: variations in charge carrier drift time; variations in signal induction, which are the result of a non-uniform weighting field in the pixels; and lastly, timewalk in the analog front-end. The second step corrects for systematic timing offsets in Timepix3 that vary from −2 to 2 ns. By applying this method, we improved the track time resolution from 438(16) ps to 276(4) ps.

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LHCb VELO Timepix3 telescope

Cited by 17 publications

References 14 publications

Studies of the spectral and angular distributions of transition radiation using a silicon pixel sensor on a Timepix3 chip

Studies of the spectral and angular distributions of transition radiation using a silicon pixel sensor on a Timepix3 chip

Temporal characterisation of silicon sensors on Timepix3 ASICs

Timing performance of the LHCb VELO Timepix3 Telescope

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