Investigations into the impact of locally modified sensor architectures on the detection efficiency of silicon micro-strip sensors

Poley, L. et al. (2017) Investigations into the impact of locally modified sensor architectures on the detection efficiency of silicon micro-strip sensors. Journal of Instrumentation, 12(07), P07006. (doi: 10.1088/1748-0221/12/07/P07006)

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The High Luminosity Upgrade of the LHC will require the replacement of the Inner Detector of ATLAS with the Inner Tracker (ITk) in order to cope with higher radiation levels and higher track densities. Prototype silicon strip detector modules are currently developed and their performance is studied in both particle test beams and X-ray beams. In previous test beam measurements of prototype modules, the response of silicon sensors has been studied in detailed scans across individual sensor strips. These scans found instances of sensor strips collecting charge across areas on the sensor deviating from the geometrical width of a sensor strip. The variations have been linked to local features of the sensor architecture. This paper presents results of detailed sensor measurements in both X-ray and particle beams investigating the impact of sensor features (metal pads and p-stops) on the sensor strip response.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Maneuski, Dr Dima and Blue, Dr Andrew
Authors: Poley, L., Lohwasser, K., Blue, A., Benoit, M., Bloch, I., Díez, S., Fadeyev, V., Gallop, B., Greenall, A., Gregor, I.-M., Keller, J., Lacasta, C., Maneuski, D., Meng, L., Milovanovic, M., Pape, I., Phillips, P.W., Rehnisch, L., Sawhney, K., Sawyer, C., Sperlich, D., Stegler, M., Unno, Y., Warren, M., and Yildirim, E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Instrumentation
Publisher:Institute of Physics Publishing Ltd.
ISSN (Online):1748-0221
Published Online:05 July 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Journal of Instrumentation 12(7):P07006
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
684001AIDA 2020: Advanced European Infrastructures for Detectors at AcceleratorsPaul SolerEuropean Commission (EC)654168S&E P&A - PHYSICS & ASTRONOMY