TEPX as a high-precision luminosity detector for CMS at the HL-LHC. (1st March 2022)

• Record Type: Journal Article
• Authors: Haranko, M.; Auzinger, G.
• Is Part Of: Journal of instrumentation. Volume 17:Number 3(2022)
• Publication Date: 2022-03-01
• Subjects: Data processing methods -- Detector control systems (detector and experiment monitoring and slow-control systems, architecture, hardware, algorithms, databases) -- Pattern recognition, cluster finding, calibration and fitting methods -- Data acquisition concepts; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/17/03/C03001
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: The CMS BRIL project upgrades its instrumentation for the Phase-2 detector to provide high-precision luminosity and beam-induced background measurements. A part of the CMS Inner Tracker — the Tracker Endcap Pixel Detector (TEPX) — will allocate a fraction of the read-out bandwidth for luminometry. The implications of the proposed approach are highlighted. A dedicated luminosity trigger and clock distribution system is introduced and a test implementation on a demonstrator system is described. A demonstrator of the real-time on-FPGA pixel cluster counting algorithm is also described.