| ATLAS Note | |
| Report number | ATL-ITK-PROC-2024-007 |
| Title | Identification and Recovery of ATLAS18 Strip Sensors with High Surface Static Charge |
| Author(s) |
Staats, Ezekiel (Carleton University (CA)) (+) ; Affolder, Tony (University of California,Santa Cruz (US)) ; Beck, Graham (University of London (GB)) ; Bevan, Adrian (University of London (GB)) ; Dawson, Ian (University of London (GB)) ; Deshmukh, Aware Nikhil (University of California,Santa Cruz (US)) ; Dowling, Andrew (Syracuse University (US)) ; Duvnjak, Damir (Carleton University (CA)) ; Fadeyev, Vitaliy (University of California,Santa Cruz (US)) ; Federicova, Pavla (Czech Academy of Sciences (CZ)) ; Fernandez-Tejero, Xavi (Simon Fraser University (CA)) ; Fournier, Andrew Curtis (Simon Fraser University (CA)) ; Chen, Zongde ; Jessiman, Callan (Carleton University (CA)) ; Kachiguine, Serguei (University of California,Santa Cruz (US)) ; Keller, John Stakely (Carleton University (CA)) ; Klein, Christoph Thomas (Carleton University (CA)) ; Koffas, Thomas (Carleton University (CA)) ; Kroll, Jiri (Czech Academy of Sciences (CZ)) ; Kvasnicka, Jiri (Czech Academy of Sciences (CZ)) ; Latonova, Vera (Czech Academy of Sciences (CZ)) ; Martinez-Mc Kinney, Forest (University of California,Santa Cruz (US)) ; Mikestikova, Marcela (Czech Academy of Sciences (CZ)) ; Miyagawa, Paul (University of London (GB)) ; O'Toole, Stephanie (Simon Fraser University (CA)) ; Poley, Anne-Luise (Simon Fraser University (CA)) ; Slavikova, Eliska Alice (Czech Academy of Sciences (CZ)) ; Stelzer, Bernd (Simon Fraser University (CA)) ; Tuma, Pavel (Czech Academy of Sciences (CZ)) ; Ullan, Miguel (Consejo Superior de Investigaciones Cientificas (CSIC) (ES)) ; Unno, Yoshinobu (High Energy Accelerator Research Organization (JP)) ; Westbrook, Connor Enoch (University of California,Santa Cruz (US)) ; Zenz, Seth (University of London (GB)) |
| Corporate Author(s) | The ATLAS collaboration |
| Publication | 2024 |
| Imprint | 13 Feb 2024 |
| Number of pages | 5 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; ATLAS |
| Abstract | The new all-silicon Inner Tracker (ITk) is being constructed by the ATLAS collaboration to track charged particles produced at the High-Luminosity LHC. The outer portion of the ITk detector will include nearly 18,000 highly segmented and radiation hard silicon strip sensors (ATLAS18 design). Throughout the production of 22,000 sensors, the strip sensors are subjected to a comprehensive suite of mechanical and electrical tests as part of the Quality Control (QC) program. In a large fraction of the batches delivered to date, high surface electrostatic charge has been measured on both the sensors and the plastic sheets which sheathe the sensors for shipping and handling rigidity. Aggregate data from across QC sites indicate a correlation between observed electrical failures and the sensor/plastic sheet charge build up. To mitigate these issues, the QC testing sites introduced recovery techniques involving UV light or flows of ionizing gas. Significant modifications to sensor handling procedures were made to prevent subsequent build up of static charge. This publication details a precise description of the issue, a variety of sensor recovery techniques, and trend analyses of sensors initially failing electrical tests (IV, strip scan, etc.). |
レコード 生成： 2024-02-13, 最終変更： 2024-02-15
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