Safety
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2 Safety
These safety notes must be read and understood by everyone who comes into contact with
superconducting magnet systems. Proper training is required for all people having access to
such systems. It is essential that clear information signs are placed and maintained to effec-
tively warn people that they are entering a hazardous area.
Please refer to Bruker’s General Safety Considerations for the Installation and Opera-
tion of Superconducting Magnets, available from Bruker.
2.1 The Magnetic Field
Since the magnetic field of the magnet system is three dimensional, consideration must be
given to floors above and below the magnet, as well as to the surrounding space on the floor
the magnet resides on. The magnetic field exerts attractive forces on equipment and objects
in its vicinity. These forces, which increase drastically approaching the magnet, may become
strong enough to move large equipment and to cause small objects or equipment to become
projectiles.
It is important to consider personnel and equipment in the rooms above, below, and
adjacent to the room where the magnet will be located:
Figure2.1: Stronger Fringe Fields in Vertical Direction than in Horizontal Direction
The magnetic field may affect the operation of electronic medical implants such as pace-
makers, if exposed to fields greater than 5 Gauss. Medical implants such as aneurysm clips,
surgical clips or prostheses may also be attracted. Further care must be taken around chang-
ing fields (e.g. pulsed gradient fields). Eddy currents could be generated in the implant result-
ing in heat generation and/or unwanted torques.
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