On the role of demagnetizing tensors in arbitrary orientations of general ellipsoids and implications for MRI safety assessment

Key Points

• To explore the implications of demagnetizing tensors in various orientations of ellipsoids and their relation to MRI safety.
• Developed a method for calculating force and torque using demagnetizing tensors.
• Introduced an area-projection approximation using singular value decomposition (SVD).
• Analyzed the connection between demagnetizing tensor rotation and the magic angle.
• Provided an alternative approach for force and torque calculations compared to ASTM standards.
• Showed that the area-projection approximation extends conventional methods effectively.
• Revealed a new perspective on how demagnetizing tensors relate to the magic angle phenomenon.