Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents

The ATLAS Collaboration

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Non-ionizing energy loss causes bulk damage to the silicon sensors of the ATLAS pixel and strip detectors. This damage has important implications for data-taking operations, charged-particle track reconstruction, detector simulations, and physics analysis. This paper presents simulations and measurements of the leakage current in the ATLAS pixel detector and semiconductor tracker as a function of location in the detector and time, using data collected in Run 1 (2010–2012) and Run 2 (2015–2018) of the Large Hadron Collider. The extracted fluence shows a much stronger |z|-dependence in the innermost layers than is seen in simulation. Furthermore, the overall fluence on the second innermost layer is significantly higher than in simulation, with better agreement in layers at higher radii. These measurements are important for validating the simulation models and can be used in part to justify safety factors for future detector designs and interventions.

本文言語English
論文番号P08025
ジャーナルJournal of Instrumentation
16
8
DOI
出版ステータスPublished - 2021 8月

ASJC Scopus subject areas

  • 数理物理学
  • 器械工学

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