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The magnets

 

An electric current produces a magnetic field. When winding up a conducting cable to make a coil, the magnetic field is concentrated in the center of the coil. The coils carry a strong intensity electric current that produces a very high magnetic field.

The LNCMI designs, builds and assembles coil windings adapted to the production of static high magnetic fields. Copper alloys with optimised mechanical and electrical properties are used to produce these resistive magnets. After being assembled, the coils are set up on magnet sites that supply DC current (up to 30 000 A) and cooling power (through a 300 l/s flow rate of demineralised water on a closed loop).

7 resistive magnet sites are available at the LNCMI static field facility today. They can generate fields up to 36 T thanks to the electric power supplied by the 24 MW installation.



The LNCMI is currently building a hybrid magnet, combining both resistive and superconducting magnet technologies. The targetted field is 43 T in 2017, and 45 T later on.