Protecting Health Workers from MRI Fields

MRI Scanner

Static magnetic fields are constant fields, which do not change in intensity or direction over time. Hence, they have a frequency of 0 Hz.

An MRI scanner applies a very strong magnetic field (about 0.2 to 3 Teslas, or roughly a thousand times the strength of a typical fridge magnet), which aligns the proton "spins." 

These fields exert an attractive force on metallic objects containing metals such as iron, nickel, or cobalt. In the natural environment the geomagnetic field of the earth exerts a force from south to north that allows. It is this force that moves the needle on a compass.   

The International Commission on Non-Ionizing Radiation Protection (ICNIRP) has published guidelines for the protection of workers against established adverse health effects arising from exposure to static magnetic fields, such as those generated by MRI equipment. 

When we are exposed to strong magnetic fields some effects on the human body may occur, such as vertigo and nausea. These result from the generation of small electrical currents in the ear, which plays a vital role in us maintaining balance. The currents generate signals to the brain that provide different information to that obtained through vision, resulting in vertigo and nausea. 

These conditions do not result in any ongoing adverse health effects. However, they may be annoying and affect normal function.  

Want to Learn More? 

What you do next will depend on your circumstances. If you are in the process of gathering information and would like to receive further information about protecting employees from EMF radiation, then please register below to receive further updates on protecting workers from EMF radiation. 

However, if your situation is more immediate and you would like to speak to someone, then please do not hesitate to contact ADM Nuclear Technologies

Our expert team is on hand to answer your questions about EMF radiation exposure and will guide you in selecting the most appropriate EMF radiation protection solution for your employees. 


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18 July 2022