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Timing performance of radiation hard MALTA monolithic pixel sensors

  • G. Gustavino
  • , P. Allport
  • , I. Asensi
  • , D. V. Berlea
  • , D. Bortoletto
  • , C. Buttar
  • , F. Dachs
  • , V. Dao
  • , H. Denizli
  • , D. Dobrijevic
  • , L. Flores
  • , A. Gabrielli
  • , L. Gonella
  • , V. González
  • , M. LeBlanc
  • , K. Oyulmaz
  • , H. Pernegger
  • , F. Piro
  • , P. Riedler
  • , H. Sandaker
  • C. Solans, W. Snoeys, T. Suligoj, M. van Rijnbach, A. Sharma, M. Vázquez Núñez, J. Weick, S. Worm, A. Zoubir
  • CERN
  • University of Birmingham
  • German Electron Synchrotron
  • University of Oxford
  • University of Glasgow
  • Abant Izzet Baysal University
  • University of Zagreb
  • University of Valencia
  • Swiss Federal Institute of Technology Lausanne
  • University of Oslo
  • Technische Universität Darmstadt

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The MALTA family of Depleted Monolithic Active Pixel Sensor (DMAPS) produced in Tower 180 nm CMOS technology targets radiation hard applications for the HL-LHC and beyond. Several process modifications and front-end improvements have resulted in radiation hardness up to 2 × 1015 1 MeV neq/cm2 and time resolution below 2 ns, with uniform charge collection efficiency across the pixel of size 36.4 × 36.4 μm2 with a 3 μm2 electrode size. The MALTA2 demonstrator produced in 2021 on high-resistivity epitaxial silicon and on Czochralski substrates implements a new cascoded front-end that reduces the RTS noise and has a higher gain. This contribution shows results from MALTA2 on timing resolution at the nanosecond level from the CERN SPS test-beam campaign of 2021.

Original languageEnglish
Article numberC03011
JournalJournal of Instrumentation
Volume18
Issue number3
DOIs
StatePublished - Mar 1 2023

Keywords

  • Particle tracking detectors (Solid-state detectors)
  • Radiation damage to detector materials (solid state)
  • Radiation-hard detectors
  • Solid state detectors

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