Timewalk correction for the Timepix3 chip obtained with real particle data

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Timewalk correction for the Timepix3 chip obtained with real particle data

Journal Article (2019)

Author(s)

S. Tsigaridas (European Synchrotron Radiation Facility)

M. V. Beuzekom (Nikhef)

H. V.D. Graaf (Nikhef, TU Delft - Applied Sciences)

F. Hartjes (Nikhef)

K. Heijhoff (Nikhef)

N. P. Hessey (TRIUMF, Vancouver)

P. J. de Jong

V. Prodanovic (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group

RST/Neutron and Photon Methods for Materials

Tracking Timepix3 Gaseous pixel detector GridPix Micro-pattern gaseous detector Timewalk

DOI related publication

https://doi.org/10.1016/j.nima.2019.03.077 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:b614634d-a4d3-4e2a-8870-095279d55312

More Info

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Publication Year

2019

Language

English

Research Group

RST/Neutron and Photon Methods for Materials

Journal title

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume number

930

Pages (from-to)

185-190

Downloads counter

191

Abstract

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-over-threshold (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.