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

DOI: 10.1088/1748-0221/12/07/P07006 DOI Help

Authors: L. Poley (Deutsches Elektronen-Synchrotron) , K. Lohwasser (Deutsches Elektronen-Synchrotron) , A. Blue (University of Glasgow) , M. Benoit (University of Geneva) , I. Bloch (Deutsches Elektronen-Synchrotron) , S. Díez (Deutsches Elektronen-Synchrotron) , V. Fadeyev (University of California) , B. Gallop (STFC Rutherford Appleton Laboratory) , A. Greenall (University of Liverpool) , I.-m. Gregor (Deutsches Elektronen-Synchrotron) , J. Keller (Deutsches Elektronen-Synchrotron) , C. Lacasta (Instituto de Física Corpuscular) , D. Maneuski (University of Glasgow) , L. Meng (University of Geneva; University of Liverpool) , M. Milovanovic (Deutsches Elektronen-Synchrotron) , I. Pape (Diamond Light Source) , P. W. Phillips (Science and Technology Facilities Council (STFC)) , L. Rehnisch (Humboldt-Universität zu Berlin) , K. Sawhney (Diamond Light Source) , C. Sawyer (STFC Rutherford Appleton Laboratory) , D. Sperlich (Humboldt University of Berlin) , M. Stegler (DESY) , Y. Unno (Humboldt-Universität zu Berlin) , M. Warren (University College London) , E. Yildirim (Deutsches Elektronen-Synchrotron)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Instrumentation , VOL 12 , PAGES P07006 - P07006

State: Published (Approved)
Published: July 2017
Diamond Proposal Number(s): 13500

Open Access Open Access

Abstract: 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.

Journal Keywords: Si microstrip and pad detectors; Inspection with x-rays; Hybrid detectors; Instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons)

Subject Areas: Physics


Instruments: B16-Test Beamline

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