Precision tracking with a single gaseous pixel detector

Tsigaridas, S.; Bakel, N. van; Bilevych, Y.; Gromov, V.; Hartjes, F.; Hessey, N. P.; Jong, P. de; Kluit, R.

doi:10.1016/j.nima.2015.06.005

Cited by 3 publications

(12 citation statements)

References 4 publications

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“…By applying the timewalk correction on the data, we achieve significant improvement to the position resolution along the drift direction with respect to [1]. We present an in-plane position resolution of 10 µm and 19 µm for the drift direction.…”

Section: Discussionmentioning

confidence: 97%

“…Unfortunately the grid-hole pitch is bigger than the pixel pitch of 55 µm. Due to this mismatch a fraction of the 1 The deposition of the layer was performed in the Else Kooi Laboratory (EKL) at Delft University of Technology resulting in a layer with a resistivity < 10 11 Ω · cm. pixels are reasonably aligned to a grid hole.…”

Section: Detectormentioning

confidence: 99%

“…By using the positional and angular errors obtained, the set of the fundamental track-resolution parameters of the detector can be derived as in [1]. Due to the symmetry of the detector for x and y direction the track resolution is expected to be the same.…”

Section: Track Position and Angular Resolutionmentioning

confidence: 99%

“…Thanks to the timewalk correction the fundamental resolution for z drops to 19 µm. The measured fundamental set of track resolutions (described in [1]) is given by eq. 14: Thanks to the Timepix3 chip which enables the timewalk correction, the improvement with respect to detectors based on Timepix and Gossipo2 chips is significant.…”

Section: Track Position and Angular Resolutionmentioning

confidence: 99%

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Timewalk correction for the Timepix3 chip obtained with real particle data

Tsigaridas

Beuzekom

Graaf

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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In this work we have developed a prototype gaseous pixel detector by combining a micromegas grid with a Timepix3 chip for the readout. The micromegas foil supported by a matrix of pillars about 50 µm high was manually placed on top the chip. By placing a cathode foil above the chip an ionisation detector was created with a drift gap of 13.5 mm.The Timepix3 chip, thanks to the simultaneous measurement of the time-of-arrival (ToA) and charge via time-overthreshold (ToT) allows corrections to remaining timewalk effects, improving further the position resolution along the drift direction. We present the timewalk correction for Timepix3 chip obtained with real data from a particle beam and its impact on the tracking performance. The results obtained show a significant improvement on the position resolution for single-hits and tracks along the drift direction compared to previous experiments. In a previous work [1] we measured the tracking performance of a gaseous pixel detector using the Gossipo2 chip and featuring a high-resolution TDC (1.8 ns) per pixel. The performance of this prototype chip technology led to a significant improvement to the position resolution in the drift direction. Its successor, the Timepix3 chip [2], implements a TDC per pixel with a better resolution of 1.56 ns, which enhances the performance. In addition, the simultaneous measurement of charge via time-overthreshold (ToT) and drift time via time-of-arrival (ToA) allows corrections to remaining timewalk effects, improving further the resolution. These facts encourage the realisation of gaseous pixel detectors based on the Timepix3chip. Therefore we assembled a gaseous pixel detector based on the Timepix3 chip that we called GasPix and installed it in a particle beam. Our aim was to study the correction for the remaining timewalk effects and measure the impact on the tracking performance.

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Section: Discussionmentioning

confidence: 97%

Section: Detectormentioning

confidence: 99%

Section: Track Position and Angular Resolutionmentioning

confidence: 99%

Section: Track Position and Angular Resolutionmentioning

confidence: 99%

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Timewalk correction for the Timepix3 chip obtained with real particle data

Tsigaridas

Beuzekom

Graaf

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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“…The high frequency clock could be operated at 560 MHz and simultaneous TOT and TOA measurement was not available in the prototype. Implemented in a detector with a short drift gap of 1.3 cm it was used in a test beam at DESY, reporting significant improvements in resolution compared to the Timepix chip [178]. A CO 2 DME 50/50 gas mixture with low diffusion (about 25 µm/ √ cm) and a drift velocity of 5.1 mm µs −1 was used.…”

Section: Timepix3mentioning

confidence: 99%

The Pixel-TPC: A feasibility study

Lupberger

2015

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

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Towards spark-proof gaseous pixel detectors

et al. 2016

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The micro-pattern gaseous pixel detector, is a promising technology for imaging and particle tracking applications. It is a combination of a gas layer acting as detection medium and a CMOS pixelated readout-chip. As a prevention against discharges we deposit a protection layer on the chip and then integrate on top a micromegas-like amplification structure. With this technology we are able to reconstruct 3D track segments of particles passing through the gas thanks to the functionality of the chip.We have turned a Timepix3 chip into a gaseous pixel detector and tested it at the SPS at Cern. The preliminary results are promising and within the expectations. However, the spark protection layer needs further improvement to make reliable detectors. For this reason, we have created a setup for spark-testing. We present the first results obtained from the lab-measurements along with preliminary results from the testbeam. K: CMOS readout of gaseous detectors; Detector design and construction technologies and materials; Gaseous imaging and tracking detectors; Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc) 1Corresponding author.

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Precision tracking with a single gaseous pixel detector

Cited by 3 publications

References 4 publications

Timewalk correction for the Timepix3 chip obtained with real particle data

Timewalk correction for the Timepix3 chip obtained with real particle data

The Pixel-TPC: A feasibility study

Towards spark-proof gaseous pixel detectors

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