A new generation of iron-dominated electromagnets has been successfully tested at CERN

A new generation of iron-dominated electromagnets has been successfully tested at CERN

A cross-section of the proof-of-principle demonstrator, with geometry (left) and magnetic flux density lines (right). The useful aperture in the pole gap is 150 x 62 mm (horizontal x vertical) for a magnetic length of 1 m. The total mass of the iron is 4500 kg, and the developed length of the MgB2 cable is 85 m. (Image: CERN)

A cross-section of the proof-of-principle demonstrator, with geometry (left) and magnetic flux density lines (right). The useful aperture in the pole gap is 150 x 62 mm (horizontal x vertical) for a magnetic length of 1 m. The total mass of the iron is 4500 kg, and the developed length of the MgB2 cable is 85 m. (Image: CERN)

 

Many physics experiments at CERN require moderate magnetic fields (around 2 tesla) in a large gap over a large volume. These are currently created by normal-conducting, iron-dominated electromagnets. While robust and reliable, these resistive magnets require significant electrical power – in the MW range – and therefore can be costly to operate, CERN News.