Towards spark-proof gaseous pixel detectors

S. Tsigaridas, M. V. Beuzekom, H.W. Chan, H. van der Graaf, F. Hartjes, K. Heijhoff, N. P. Hessey, V. Prodanovic

Research output: Contribution to journalArticleScientificpeer-review


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.
Original languageEnglish
Article numberC11016
Pages (from-to)1-10
Number of pages10
JournalJournal of Instrumentation
Publication statusPublished - 15 Nov 2016
EventIWORID 2017: 19th International Workshop on Radiation Imaging Detectors - Krakow, Poland
Duration: 2 Jul 20176 Jul 2017
Conference number: 19


  • 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)

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