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 SandakerCarlos Solans, Walter Snoeys, Tomislav Suligoj, Milou van Rijnbach, Marcos Vázquez Núñez, Julian Weick, Steven Worm, Abdelhak Zoubir

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

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 (< 2 ns) 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 utilize 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 characterization studies of the MALTA2 sensors, including results demonstrating the radiation tolerance of these sensors.
Original languageEnglish
Title of host publicationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Subtitle of host publicationProceedings of VCI 2022
DOIs
Publication statusPublished - Oct 2022

Publication series

NameNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
PublisherElsevier BV
ISSN (Print)0168-9002

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