17–21 Jun 2024
CERN
Europe/Zurich timezone

Radiation hardness and timing performance of MALTA monolithic Pixel sensors in Tower 180 nm

17 Jun 2024, 12:15
15m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
WG1 - Monolithic Sensors WG/WP1 - CMOS technologies

Speaker

Lucian Fasselt (DESY)

Description

The MALTA family of Monolithic Active Pixel Sensors produced in Tower 180 nm CMOS imaging technology on high-resistivity epitaxial silicon and on Czochralski substrates with a pixel size of 36.4 um2, and a 3 um2 electrode size, feature an asynchronous read-out architecture. Several process modifications, and front-end improvements have been implented on several prototypes that have resulted in reduced RTS noise, increased gain, radiation hardness of 3e15 n/cm2, time resolution below 2 ns, and a uniform charge collection efficiency across the pixel. Results form the beam tests of MALTA2 at the SPS at CERN will be presented, together with the results in laboratory conditions of Edge Transient Current Technique measurements. These measurements together with efficiency, cluster size and timing measurements before and after neutron irradiation show that MALTA2 is an interesting tracking sensor for HL-LHC and beyond collider experiments, providing both very good tracking capabilities and radiation hardness in harsh radiation environments. Preliminary results from the latest prototype, Mini-MALTA3, that includes an on-chip syncrhonization memory running at 1.28 GHz and on-board serialization will also be discussed.

Type of presentation (in-person/online) in-person presentation
Type of presentation (scientific results or project proposal) Presentation on scientific results

Primary author

Co-authors

Carlos Solans Sanchez (CERN) Marcos Vazquez Nunez (Univ. of Valencia and CSIC (ES))

Presentation materials