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Portrait of RP

Ruth Pöttgen

Senior Lecturer

Portrait of RP

Sensor response and radiation damage effects for 3D pixels in the ATLAS IBL Detector

Author

  • G. Aad
  • Torsten Åkesson
  • Sten Åstrand
  • Caterina Doglioni
  • Alexander Ekman
  • Vincent Hedberg
  • Hannah Herde
  • Balazs Konya
  • Else Lytken
  • Ruth Pöttgen
  • Nathan Daniel Simpson
  • Oxana Smirnova
  • Erik Jakob Wallin
  • L. Zwalinski
Show all

Summary, in English

Pixel sensors in 3D technology equip the outer ends of the staves of the Insertable B Layer (IBL), the innermost layer of the ATLAS Pixel Detector, which was installed before the start of LHC Run 2 in 2015. 3D pixel sensors are expected to exhibit more tolerance to radiation damage and are the technology of choice for the innermost layer in the ATLAS tracker upgrade for the HL-LHC programme. While the LHC has delivered an integrated luminosity of ≃ 235 fb−1 since the start of Run 2, the 3D sensors have received a non-ionising energy deposition corresponding to a fluence of ≃ 8.5 × 1014 1 MeV neutron-equivalent cm−2 averaged over the sensor area. This paper presents results of measurements of the 3D pixel sensors’ response during Run 2 and the first two years of Run 3, with predictions of its evolution until the end of Run 3 in 2025. Data are compared with radiation damage simulations, based on detailed maps of the electric field in the Si substrate, at various fluence levels and bias voltage values. These results illustrate the potential of 3D technology for pixel applications in high-radiation environments. © 2024 Institute of Physics. All rights reserved.

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration
  • Department of Physics

Publishing year

2024

Language

English

Publication/Series

Journal of Instrumentation

Volume

19

Issue

10

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Subatomic Physics

Keywords

  • charge transport
  • Detector modelling and simulations II (electric fields
  • electron emission
  • etc); Particle tracking detectors (Solid-state detectors)
  • multiplication and induction
  • pulse formation
  • Bosons
  • Hadrons
  • Photons
  • Silicon sensors
  • Solid-state sensors
  • Surface discharges
  • Detector modeling
  • Detector modeling and simulation II (electric field
  • Detector simulations
  • Etc);
  • Model and simulation
  • Multiplication and induction
  • Particle tracking
  • Particle tracking detector (solid-state detector)
  • Pulse formation
  • Solid state detectors
  • Tracking detectors
  • Particle detectors

Status

Published

ISBN/ISSN/Other

  • ISSN: 1748-0221