Radiation hardness and timing performance in MALTA monolithic pixel sensors in TowerJazz 180 nm. (1st April 2022)

• Record Type: Journal Article
• Authors: van Rijnbach, M.; Allport, P.; Asensi, I.; Berdalovic, I.; Bortoletto, D.; Buttar, C.; Cardella, R.; Dachs, F.; Dao, V.; Denizli, H.; Dobrijevic, D.; Dyndal, M.; Flores, L.; Freeman, P.; Gabrielli, A.; Gonella, L.; LeBlanc, M.; Oyulmaz, K.; Pernegger, H.; Piro, F.; Riedler, P.; Sandaker, H.; Solans, C.; Snoeys, W.; Suligoj, T.; Torres, J.; Worm, S.
• Is Part Of: Journal of instrumentation. Volume 17:Number 4(2022)
• Publication Date: 2022-04-01
• Subjects: Radiation-hard detectors -- Materials for solid-state detectors; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/17/04/C04034
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: The MALTA family of depleted monolithic pixel sensors produced in TowerJazz 180 nm CMOS technology target radiation hard applications for the HL-LHC and beyond. Several process modifications and front-end improvements have resulted in radiation hardness >10 15 1 MeV neq /cm 2 and time resolution below 2 ns, with uniform charge collection and efficiency across the pixel of size 36.4 × 36.4 µm 2 with small collection electrode. This contribution will present the comparison of samples produced on high-resistivity epitaxial silicon with Czochralski substrates, before and after neutron irradiation, and results from MALTA2 with a new cascoded front-end flavour that further reduces the RTS noise.