მთავარი > CERN Experiments > LHC Experiments > ALICE > ALICE Preprints > The charge sensitivity calibration of the upgraded ALICE Inner Tracking System |
Article | |
Report number | arXiv:2110.12525 |
Title | The charge sensitivity calibration of the upgraded ALICE Inner Tracking System |
Author(s) | Yuan, Shiming (Bergen U.) ; Alme, Johan (Bergen U.) ; Keil, Markus (CERN) ; Ravasenga, Ivan (CERN) ; Richter, Matthias (Bergen U.) ; Röhrich, Dieter (Bergen U.) |
Collaboration | ALICE Collaboration |
Publication | 2022-04-29 |
Imprint | 2021-10-24 |
Number of pages | 7 |
In: | JINST 17, 04 (2022) pp.C04036 |
In: | TWEPP 2021 Topical Workshop on Electronics for Particle Physics, Online, Online, 20 - 24 Sep 2021, pp.C04036 |
DOI | 10.1088/1748-0221/17/04/C04036 |
Subject category | physics.ins-det ; Detectors and Experimental Techniques |
Accelerator/Facility, Experiment | CERN LHC ; ALICE |
Abstract | The ALICE detector is undergoing an upgrade for Run 3 at the LHC. A new Inner Tracking System (ITS) is part of this upgrade. The upgraded ALICE ITS features the ALPIDE, a Monolithic Active Pixel Sensor. Due to IC fabrication variations and radiation damages, the threshold values for the ALPIDE chips in ITS need to be measured and adjusted periodically to ensure the quality of data. The calibration is implemented within the ALICE Online-Offline (O$^2$) Computing System, thus it runs in the same framework as the normal operations. This paper describes the concept and first implementation of the charge sensitivity scanning procedures for the upgraded ALICE ITS in the ALICE O$^2$ System, and demonstrates the first results of the scanning of the data taken from the installed ITS. |
Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2022-2025 IOP Publishing Ltd and Sissa Medialab |