Pulsed Magnets
The above magnet was designed and built at the Katholike University in
Leuven, Belgium by the group of Fritz Herlach. Pulsed magnets of this type
are unique devices that are designed to withstand impulsive forces with
energies similar to a stick of dynamite.
As an illustration of the forces involved during a routine high field pulse,
a destroyed test magnet is pictured below.
This all copper test magnet was designed to withstand
magnetic fields up to 30 tesla. Cracks began developing on the edges of the
epoxy impregnated reinforcement after 40-50 full field (30T) pulses. The upper
limit in magnetic field was then
determined by increasing the energy into the magnet until the reinforcement
failed. A field of 34 tesla was determined to be the break point
for this design. Knowing the break points of a particular design is
valuable so that normal operational energies can be kept safely below the
failure point, minimizing damage to cryogenic equipment placed in the center of
the magnet.
As an illustration of the forces involved during a routine high field pulse, a destroyed test magnet is pictured below. This all copper test magnet was designed to withstand magnetic fields up to 30 tesla. Cracks began developing on the edges of the epoxy impregnated reinforcement after 40-50 full field (30T) pulses. The upper limit in magnetic field was then determined by increasing the energy into the magnet until the reinforcement failed. A field of 34 tesla was determined to be the break point for this design. Knowing the break points of a particular design is valuable so that normal operational energies can be kept safely below the failure point, minimizing damage to cryogenic equipment placed in the center of the magnet.
