Vincent Hedberg
Senior lecturer
Operation and performance of the ATLAS semiconductor tracker in LHC Run 2
Author
Summary, in English
The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. During Run 2 (2015-2018) the Large Hadron Collider delivered an integrated luminosity of 156 fb−1 to the ATLAS experiment at a centre-of-mass proton-proton collision energy of 13 TeV. The instantaneous luminosity and pile-up conditions were far in excess of those assumed in the original design of the SCT detector. Due to improvements to the data acquisition system, the SCT operated stably throughout Run 2. It was available for 99.9% of the integrated luminosity and achieved a data-quality efficiency of 99.85%. Detailed studies have been made of the leakage current in SCT modules and the evolution of the full depletion voltage, which are used to study the impact of radiation damage to the modules. © 2022 CERNüäβ
Department/s
- Particle and nuclear physics
- eSSENCE: The e-Science Collaboration
Publishing year
2022
Language
English
Publication/Series
Journal of Instrumentation
Volume
17
Issue
1
Document type
Journal article
Publisher
IOP Publishing
Topic
- Subatomic Physics
Keywords
- Charge transport and multiplication in solid media
- Particle tracking detectors (Solid-state detectors)
- Radiation damage to detector materials (solid state)
- Solid state detectors
- Charged particles
- Data acquisition
- Luminance
- Piles
- Semiconductor detectors
- Charge transport and multiplication in solid medium
- Detector materials
- Particle tracking
- Particle tracking detector (solid-state detector)
- Radiation damage to detector material (solid state)
- Semiconductor tracker
- Solid medium
- Tracking detectors
- Radiation damage
Status
Published
ISBN/ISSN/Other
- ISSN: 1748-0221