Measurements of time resolution of the RD50-MPW2 DMAPS prototype using TCT and 90Sr



Debevc, J, Franks, M, Hiti, B, Kraemer, U, Kramberger, G, Mandic, I, Marco-Hernandez, R, Nobels, DJL, Powell, S, Sonneveld, J
et al (show 4 more authors) (2024) Measurements of time resolution of the RD50-MPW2 DMAPS prototype using TCT and 90Sr JOURNAL OF INSTRUMENTATION, 19 (5). p05068-. ISSN 1748-0221, 1748-0221

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Abstract

Results in this paper present an in-depth study of time resolution for active pixels of the RD50-MPW2 prototype CMOS particle detector. Measurement techniques employed include Backside- and Edge-TCT configurations, in addition to electrons from a 90Sr source. A sample irradiated to 5 · 1014 n<inf>eq</inf>/cm2 was used to study the effect of radiation damage. Timing performance was evaluated for the entire pixel matrix and with positional sensitivity within individual pixels as a function of the deposited charge. Time resolution obtained with TCT is seen to be uniform throughout the pixel's central region with approx. 220 ps at 12 ke- of deposited charge, degrading at the edges and lower values of deposited charge. 90Sr measurements show a slightly worse time resolution as a result of delayed events coming from the peripheral areas of the pixel.

Item Type: Article
Uncontrolled Keywords: Particle tracking detectors (Solid-state detectors), Radiation-hard detectors, Solid state detectors
Divisions: Faculty of Science & Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 30 May 2024 15:02
Last Modified: 16 Jun 2026 16:57
DOI: 10.1088/1748-0221/19/05/P05068
Open Access URL: https://doi.org/10.1088/1748-0221/19/05/P05068
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3181879
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