What is the IEC limit for dB/dt for movement in a static magnetic field?

The limit set by the International Electrotechnical Commission (IEC) for dB/dt, which refers to the rate of change of the magnetic field over time in a static magnetic field, is focused on ensuring safety for individuals who may be exposed to varying magnetic fields, particularly in magnetic resonance environments.

The IEC standard defines this limit as 3 Teslas per second (3 T/s). This threshold helps prevent adverse effects that rapid changes in magnetic fields can have on individuals, especially those with implanted medical devices like pacemakers, which can be susceptible to interference from changing magnetic fields.

Understanding this limit is crucial for maintaining safety protocols in environments where MRI systems are operational. Adherence to the IEC dB/dt limit is a key factor in risk management and ensuring the well-being of patients and staff in the MRI setting.