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Production and validation of industrially produced large-sized GEM foils for the Phase-2 upgrade of the CMS muon spectrometer
/ Abbas, Syed Mohsin (IPM, Tehran) ; Abbrescia, Marcello (INFN, Bari ; Bari U.) ; Abdalla, Hassan Fathy (Cairo, Acad. Sci. Res. Tech.) ; Abdelalim, Ahmed Ali (Cairo, Acad. Sci. Res. Tech.) ; Abuzeid Hassan, Shimaa Abdelwahed (INFN, Pavia) ; Aebi, Devin Michael (Texas A-M) ; Agapitos, Antonis (Peking U.) ; Ahmad, Ashfaq (Quaid-i-Azam U.) ; Ahmed, Asar (Delhi U.) ; Ahmed, Waqar (Quaid-i-Azam U.) et al.
The upgrade of the CMS detector for the high luminosity LHC (HL-LHC) will include gas electron multiplier (GEM) detectors in the end-cap muon spectrometer.
Due to the limited supply of large area GEM detectors, the Korean CMS (KCMS) collaboration had formed a consortium with Mecaro Co., Ltd. to serve as a supplier of GEM foils with area of approximately 0.6 m$^{2}$.
The consortium has developed a double-mask etching technique for production of these large-sized GEM foils.
This article describes the production, quality control, and quality assessment (QA/QC) procedures and the mass production status for the GEM foils. [...]
CMS-NOTE-2023-006; CERN-CMS-NOTE-2023-006.-
Geneva : CERN, 2023 - 18 p.
Fulltext: PDF;
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CMS phase-II upgrade of the RPC Link System
/ CMS Collaboration
The present RPC Link System has been servicing as one of the CMS subsystems since installation in 2008. Although the current Link System has been functioning well for the past 13 years, the aging of its electronic components and lack of radiation hard ASICs could present problems for future operations. [...]
2021 - 10 p.
- Published in : JINST 16 (2021) C05003
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Fast timing measurement for CMS RPC Phase-II upgrade
/ Fagot, A (Gent U.) ; Gul, M (Gent U.) ; Roskas, C (Gent U.) ; Tytgat, M (Gent U.) ; Zaganidis, N (Gent U.) ; Souza, S Fonseca De (Rio de Janeiro State U.) ; Santoro, A (Rio de Janeiro State U.) ; da Silva de Araujo, F Torres (Rio de Janeiro State U.) ; Aleksandrov, A (Sofiya, Inst. Nucl. Res.) ; Hadjiiska, R (Sofiya, Inst. Nucl. Res.) et al.
/CMS ; CMS Muon group
With the increase of the LHC luminosity foreseen in the coming years, many detectors currently used in the different LHC experiments will be dramatically impacted and some need to be replaced or upgraded. The new ones should be capable to provide time information to reduce the data ambiguity due to the expected high pileup. [...]
2018 - 12 p.
- Published in : JINST 13 (2018) C09001
In : RPC 2018 - THE XIV WORKSHOP ON RESISTIVE PLATE CHAMBERS AND RELATED DETECTORS, Puerto Vallarta, Mexico, 19 - 23 Feb 2018, pp.C09001
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Long-term performance and longevity studies of the CMS Resistive Plate Chambers
/ Rabadan-Trejo, R I (CINVESTAV, IPN) ; Fagot, A (Gent U.) ; Gul, M (Gent U.) ; Roskas, C (Gent U.) ; Tytgat, M (Gent U.) ; Zaganidis, N (Gent U.) ; Souza, S Fonseca De (Rio de Janeiro State U.) ; Santoro, A (Rio de Janeiro State U.) ; da Silva de Araujo, F Torres (Rio de Janeiro State U.) ; Aleksandrov, A (Sofiya, Inst. Nucl. Res.) et al.
Four double-gap CMS resistive plate chambers are being tested at the CERN Gamma Irradiation Facility to determine the performance and aging effects at the expected conditions of the High Luminosity-Large Hadron Collider. Results up to an integrated charge of 290 millicoulomb/cm2 are reported..
2018 - 10 p.
- Published in : JINST 13 (2018) P08024
Fulltext: PDF; Fulltext from Publisher: PDF;
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Quality Control of Mass-Produced GEM Detectors for the CMS GE1/1 Muon Upgrade
/ Abbas, Syed Mohsin (IPM, Tehran) ; Abbrescia, Marcello (INFN, Bari ; Bari U.) ; Abdalla, Hassan Fathy (Cairo, Acad. Sci. Res. Tech.) ; Abdelalim, Ahmed Ali (Cairo, Acad. Sci. Res. Tech.) ; Abuzeid Hassan, Shimaa Abdelwahed (INFN, Pavia) ; Agapitos, Antonis (Peking U.) ; Ahmad, Ashfaq (Quaid-i-Azam U.) ; Ahmed, Asar (Delhi U.) ; Ahmed, Waqar (Quaid-i-Azam U.) ; Aimè, Chiara (INFN, Pavia ; Pavia U.) et al.
The series of upgrades to the Large Hadron Collider, culminating in the High Luminosity Large Hadron Collider, will enable a significant expansion of the physics program of the CMS experiment. However, the accelerator upgrades will also make the experimental conditions more challenging, with implications for detector operations, triggering, and data analysis. [...]
CMS-NOTE-2022-004; CERN-CMS-NOTE-2022-004.-
Geneva : CERN, 2022 - 47 p.
Fulltext: PDF;
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The CMS RPC system readiness for LHC Run-3 data taking
/ CMS Muon Collaboration
During Run-3, the LHC is preparing to deliver instantaneous luminosity in the range from 5 × 1034 cm−2 s−1 to 7.5 × 1034 cm−2 s−1. To ensure stable data taking, providing redundant information for robust muon triggering, reconstruction and identification, the CMS RPC collaboration has used the opportunity given by the LHC long shutdown 2 (LS2), to perform a series of maintenance and preparation activities for the new data taking period. [...]
2023 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1052 (2023) 168272
In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168272
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