Superconducting Magnets for FAIR



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photo: G. Sikler, Babcock Noëll GmbH

Magnets are essential components of circular accelerator facilities, directing and holding the particles on their circuit. In the SIS100 synchrotron at FAIR a latest technology of electro magnets will be used, so-called superconducting magnets. Superconduction means that particles can pass this magnet without any electric resistance. This property is achieved by an extreme cooling of the magnet with liquid helium down to 4 Kelvin (these are -269° C). An advantage of this technology is the energy saving aspect with operation of this magnet in comparison with conventional ones. 

 

 

Enlarge pic
photo: G. Sikler, Babcock Noëll GmbH

Superconducting dipole magnets of this type will be able to provide a magnetic field of up to 1.9 Tesla, whereas 1 Tesla is approximately 20.000 times more than the magnetic field of the Earth. The magnet will be able to create its maximum field intensity within half a second.

A prototype of this superconducting dipole-magnet with a length of nearly 3 meters and a weight of more than 3 tons has been developed especially for FAIR and has brilliantly passed all its tests so far. 108 of such magnets will be required for the SIS100 synchrotron at FAIR.

 


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