Depending on the type of MRI magnet, its Tesla field strength and the location of the site, enviro-Steel® magnetic steel shielding may be required.
This shielding is essential to limit the spread of the 0.5mT (5 Gauss) magnetic field line, protecting sensitive medical equipment and reducing risks for individuals with pacemakers and implants. If the magnetic field extends beyond the designated room, it could pose significant dangers to the surrounding public.
The strength of the magnetic field is highest at the magnets centre, or isocentre, and diminishes with distance, known as the fringe field, typically measured in milli Tesla (mT) or gauss (G). It is important to note that 0.5mT is equivalent to 5G.
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External interference must also be considered, as objects containing ferrous magnetic metals, such as vehicles or lift shafts, can disrupt the MRI scanners function.
Introducing materials like enviro-Steel® magnetic steel shielding helps contain the magnetic field and prevents external interference.
Envirotect has a wealth of experience in calculating, designing, manufacturing and installing enviro-Steel® magnetic steel shielding.