A fiber optic sensors monitoring system for the central beam pipe of the CMS experiment

Francesco Fienga, Z. Szillási, N. Béni, Andrea Irace, Andrea Gaddi, Wolfram Zeuner, Austin Ball, Salvatore Buontempo, Giovanni Breglio

Research output: Article

Abstract

In this paper we describe the main characteristics and experimental results, recorded in more than four years of data acquisition, of a temperature and strain monitoring system, called i-pipe, based on Fiber Bragg Grating (FBG) sensors arrays applied for the first time to a sector of the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN): the central beam pipe (BP) of the Compact Muon Solenoid (CMS). The monitoring system, consisting of four arrays of 16 FBG sensors each, as better described in the text, is placed on four directives of the LHC section that passes inside the CMS experiment, namely the CMS central BP. The mechanical complexity of the central BP structure is described and the monitoring results of its thermal conditions and online unpredictable mechanical deformations are discussed in this paper. In spite of the harsh working conditions this monitoring system is operational since 2015 continuously (24/7) and the data collected are a confirmation of its reliability. This FBG sensors system represents the ideal solution to realize an accurate and robust sensing system to be used in harsh environments, like the CMS experimental facility and all the other High Energy Physics experimental infrastructures.

Original languageEnglish
Article number105650
JournalOptics and Laser Technology
Volume120
DOIs
Publication statusPublished - dec. 1 2019

Fingerprint

Solenoids
Fiber optic sensors
solenoids
muons
fiber optics
Fiber Bragg gratings
Pipe
Bragg gratings
Monitoring
sensors
Colliding beam accelerators
fibers
Experiments
nuclear research
High energy physics
Sensors
Sensor arrays
Condition monitoring
data acquisition
Data acquisition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

A fiber optic sensors monitoring system for the central beam pipe of the CMS experiment. / Fienga, Francesco; Szillási, Z.; Béni, N.; Irace, Andrea; Gaddi, Andrea; Zeuner, Wolfram; Ball, Austin; Buontempo, Salvatore; Breglio, Giovanni.

In: Optics and Laser Technology, Vol. 120, 105650, 01.12.2019.

Research output: Article

Fienga, Francesco ; Szillási, Z. ; Béni, N. ; Irace, Andrea ; Gaddi, Andrea ; Zeuner, Wolfram ; Ball, Austin ; Buontempo, Salvatore ; Breglio, Giovanni. / A fiber optic sensors monitoring system for the central beam pipe of the CMS experiment. In: Optics and Laser Technology. 2019 ; Vol. 120.
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