Magnetic properties of materials for MR engineering, micro-MR and beyond

Matthias C Wapler; Jochen Leupold; Iulius Dragonu; Dominik von Elverfeld; Maxim Zaitsev; Ulrike Wallrabe

doi:10.1016/j.jmr.2014.02.005

Magnetic properties of materials for MR engineering, micro-MR and beyond

J Magn Reson. 2014 May:242:233-42. doi: 10.1016/j.jmr.2014.02.005. Epub 2014 Mar 15.

Authors

Matthias C Wapler¹, Jochen Leupold², Iulius Dragonu², Dominik von Elverfeld², Maxim Zaitsev², Ulrike Wallrabe³

Affiliations

¹ Laboratory for Microactuators, Department of Microsystems Engineering - IMTEK, University of Freiburg, Germany.
² Medical Physics, Department of Radiology, University Medical Center Freiburg, Germany.
³ Laboratory for Microactuators, Department of Microsystems Engineering - IMTEK, University of Freiburg, Germany. Electronic address: wallrabe@imtek.uni-freiburg.de.

PMID: 24705364
DOI: 10.1016/j.jmr.2014.02.005

Abstract

We present the results of a systematic measurement of the magnetic susceptibility of small material samples in a 9.4 T MRI scanner. We measured many of the most widely used materials in MR engineering and MR micro technology, including various polymers, optical and substrate glasses, resins, glues, photoresists, PCB substrates and some fluids. Based on our data, we identify particularly suitable materials with susceptibilities close to water. For polyurethane resins and elastomers, we also show the MR spectra, as they may be a good substitute for silicone elastomers and good casting resins.

Keywords: Instrumentation engineering materials; MR compatibility; MR optics materials; Magnetic susceptibility; Micro MR materials; Polyurethane.

Publication types

Research Support, Non-U.S. Gov't