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Abstract #3221

Torque and Translational Force Estimation for Ferromagnetic Objects: the Saturation Effect

Vahid Ghodrati 1 and Abbas Nasiraei Moghaddam 1,2

1 BME, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Tehran, Iran, 2 School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran

Ferromagnetic objects in the MR-environment experienced linear magnetic region or saturation region. almost ferromagnetic objects placed in the saturation region in the commercial MR-scanners. Therefore, it is necessary to considered saturation region for these objects to have a better estimation of the torque and force that acted on ferromagnetic objects. Here, the approximated strength for the magnetic field that can be saturated the almost ferromagnetic objects will be presented. Also, it will show that just by using the linear region, the approximation of force will be 1.5 times overestimated in comparison by considering of real states for these objects.

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