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Recent results with radiation-tolerant TowerJazz 180 nm MALTA sensors

  • Matt LeBlanc
  • , Phil Allport
  • , Igancio Asensi
  • , Dumitru Vlad Berlea
  • , Daniela Bortoletto
  • , Craig Buttar
  • , Florian Dachs
  • , Valerio Dao
  • , Haluk Denizli
  • , Dominik Dobrijevic
  • , Leyre Flores
  • , Andrea Gabrielli
  • , Laura Gonella
  • , Vicente González
  • , Giuliano Gustavino
  • , Kaan Oyulmaz
  • , Heinz Pernegger
  • , Francesco Piro
  • , Petra Riedler
  • , Heidi Sandaker
  • Carlos Solans, Walter Snoeys, Tomislav Suligoj, Milou van Rijnbach, Abhishek Sharma, Marcos Vázquez Núñez, Julian Weick, Steven Worm, Abdelhak 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

1 Scopus citations

Abstract

To achieve the physics goals of future colliders, it is necessary to develop novel, radiation-hard silicon sensors for their tracking detectors. We target the replacement of hybrid pixel detectors with Depleted Monolithic Active Pixel Sensors (DMAPS) that are radiation-hard, monolithic CMOS sensors. We have designed, manufactured and tested the MALTA series of sensors, which are DMAPS in the 180 nm TowerJazz CMOS imaging technology. MALTA have a pixel pitch well below current hybrid pixel detectors, high time resolution (<2ns) and excellent charge collection efficiency across pixel geometries. These sensors have a total silicon thickness of between 50–300 μm, implying reduced material budgets and multiple scattering rates for future detectors which utilise such technology. Furthermore, their monolithic design bypasses the costly stage of bump-bonding in hybrid sensors and can substantially reduce detector costs. This contribution presents the latest results from characterisation studies of the MALTA2 sensors, including results demonstrating the radiation tolerance of these sensors.

Original languageEnglish
Article number167390
JournalNuclear Inst. and Methods in Physics Research, A
Volume1041
DOIs
StatePublished - Oct 11 2022

Keywords

  • CMOS
  • DMAPS
  • Monolithic sensors

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