Timewalk correction for the Timepix3 chip obtained with real particle data

Journal article (2019)

Authors

S. Tsigaridas European Synchrotron Radiation Facility
H. van der Graaf Nikhef, RST/Neutron and Positron Methods in Materials - AS
F. Hartjes Nikhef
K. Heijhoff Nikhef
N. P. Hessey TRIUMF, Vancouver
P. J. de Jong Science Park 105
V. Prodanovic EKL Processing - EEMCS , Science Park 105
Research Group
RST/Neutron and Positron Methods in Materials (AS) (TU Delft)
More Info
expand_more

Published Date

2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Neutron and Positron Methods in Materials

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.

Files

1_s2.0_S016890021930419X_main.... (pdf)
(pdf | 1.58 Mb)

Download not available