Triaxial fiber optic magnetic field sensor for MRI applications

Massimo L. Filograno, Marco Pisco, Angelo Catalano, Ernesto Forte, Marco Aiello, Andrea Soricelli, Daniele Davino, Ciro Visone, Antonello Cutolo, Andrea Cusano

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we report a fiber-optic triaxial magnetic field sensor, based on Fiber Bragg Gratings (FBGs) integrated with giant magnetostrictive material, the Terfenol-D. The realized sensor has been designed and engineered for Magnetic Resonance Imaging (MRI) applications. A full magneto-optical characterization of the triaxial sensing probe has been carried out, providing the complex relationship among the FBGs wavelength shift and the applied magnetostatic field vector. Finally, the developed fiber optic sensors have been arranged in a sensor network composed of 20 triaxial sensors for mapping the magnetic field distribution in a MRI-room at a diagnostic center in Naples (SDN), equipped with Positron emission tomography/magnetic resonance (PET/MR) instrumentation. Experimental results reveal that the proposed sensor network can be efficiently used in MRI centers for performing quality assurance tests, paving the way for novel integrated tools to measure the magnetic dose accumulated day by day by MRI operators.

Original languageEnglish
Title of host publicationSixth European Workshop on Optical Fibre Sensors
ISBN (Electronic)9781510602199
Publication statusPublished - 2016
Event6th European Workshop on Optical Fibre Sensors - Limerick, Ireland
Duration: May 31 2016Jun 3 2016


Other6th European Workshop on Optical Fibre Sensors


  • Fiber Bragg Grating
  • Magnetic Resonance Imaging
  • Optical fiber sensor
  • Quality assurance
  • Terfenol-D

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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