Future developments of radiation tolerant sensors based on the MALTA architecture

Dobrijević, D. et al. (2023) Future developments of radiation tolerant sensors based on the MALTA architecture. Journal of Instrumentation, 18(03), C03013. (doi: 10.1088/1748-0221/18/03/c03013)

Abstract

The planned MALTA3 DMAPS designed in the standard TowerJazz 180 nm imaging process will implement the numerous process modifications, as well as front-end changes in order to boost the charge collection efficiency after the targeted fluence of 1 × 1015 1 MeV neq/cm2. The effectiveness of these changes have been demonstrated with recent measurements of the full size MALTA2 chip. With the original MALTA concept being fully asynchronous, a small-scale MiniMALTA demonstrator chip has been developed with the intention of bridging the gap between the asynchronous pixel matrix, and the synchronous DAQ. This readout architecture will serve as a baseline for MALTA3, with focus on improved timing performance. The synchronization memory has been upgraded to allow clock speeds of up to 1.28 GHz, with the goal of achieving a sub-nanosecond on-chip timing resolution. The subsequent digital readout chain has been modified and will be discussed in the context of the overall sensor architecture.

• Item Type: Articles
• Additional Information: This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement Numbers: 101004761, 675587215, and 654168.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Buttar, Professor Craig
• Authors: Dobrijević, D., Allport, P., Asensi, I., Berlea, D., Bortoletto, D., Buttar, C., Dachs, F., Dao, V., Denizli, H., Sanz de Acedo, L.F., Gabrielli, A., Gonella, L., González, V., LeBlanc, M., Núñez, M.V., Oyulmaz, K., Pernegger, H., Piro, F., Riedler, P., Sandaker, H., Sánchez, C.S., Snoeys, W., Suligoj, T., van Rijnbach, M., Weick, J., and Worm, S.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Journal of Instrumentation
• Publisher: IOP Publishing
• ISSN: 1748-0221
• ISSN (Online): 1748-0221
• Published Online: 15 March 2023
• Copyright Holders: Copyright © 2023 The Author(s)
• First Published: First published in Journal of Instrumentation 18(03):C03013
• Publisher Policy: Reproduced under a Creative Commons license