NDLI: Front-End Control and Monitoring System for the Resistive Plate Chambers at the CMS Experiment

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Front-End Control and Monitoring System for the Resistive Plate Chambers at the CMS Experiment

Content Provider	CERN Document Server
Author	Thyssen, Filip
Description	Presented at: 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, Valencia, Spain, 23 - 29 Oct 2011 Collaboration with: CMS
Abstract	The Compact Muon Solenoid (CMS) experiment at the CERN Large Hadron Collider (LHC) uses Resistive Plate Chambers (RPCs) as a trigger-dedicated muon detector. The RPC subdetector presently consists of 912 chambers, providing a $\approx$~3\,ns time resolution for the pseudorapidity region $\lvert\eta\rvert~<~1.6$. \\ Up to 18 on-detector Front-End Boards (FEBs) per RPC are responsible for signal processing. Each FEB is configured and monitored through its Inter-Integrated Circuit (I$^2$C) interface to ensure correct and safe detector operation. The resulting $\sim$1.2\,k I$^2$C lines, serving 3 to 6 FEBs apiece, are accessible through Control Boards (CBs) in token rings. \\ An online control and monitoring system has recently been developed to automatically configure and continuously monitor FEB parameters. A fine-grained software model of hardware and detector components, organized in a dual hierarchical tree structure, facilitates command and data flow. A novel web-based user-interface allows control of and navigation through the system for efficient problem tracing. \\ This paper covers the front-end control and monitoring system for the RPC subdetector; the online software components that allow for flexible configuration and comprehensive monitoring are described.
Page Count	6
File Format	PDF
Language	English
Publisher Date	2011-01-01
Access Restriction	Open
Rights License	Preprint: (License: CC-BY-4.0)
Subject Keyword	General Detectors and Experimental Techniques
Content Type	Text
Resource Type	Article

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