PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Posters: Detectors for Future Facilities (incl. HL-LHC), R&D, Novel Techniques
Radiation-Hard Silicon Strip Sensors for the ATLAS Phase-2 Upgrade
V. Latonova*  on behalf of the ATLAS Collaboration
Full text: pdf
Pre-published on: February 13, 2021
Published on: April 15, 2021
Abstract
The ATLAS upgrade for HL-LHC operation includes the installation of an entirely new all-silicon Inner Tracker (ITk). The silicon strip region comprises $165\,\mathrm{m}^2$ of instrumented area, made possible by mass production of silicon strip sensors. This area is covered in a nearly hermetic way. Multiple sensor shapes are utilized: square sensors in the barrel part, and skewed trapezoidal sensors with curved edges to provide a continuous coverage of the disc surface in the endcap part of a detector. As a result, there are $8$ different strip sensor types in the system. They all feature AC-coupled n${}^+$-in-p strips with polysilicon biasing, developed to withstand the total fluence of $1.6\cdot 10^{15}\,\mathrm{n_{eq}/cm^2}$ and the total ionizing dose of $66\, \mathrm{Mrad}$. Following many years of R&D and $4$ prototype submissions and evaluations, the project transitioned into pre-production, where $5\, \mathrm{\%}$ of the total volume is produced in all $8$ designs. In this contribution we will summarize the results obtained for the latest prototype sensors ATLAS$17$LS, a long-strip type sensor for the barrel part, the properties of which are expected to be comparable with the pre-production sensors.
DOI: https://doi.org/10.22323/1.390.0892
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.