New Faraday cages for HiLumi sensitive electronics

Four Faraday cages have been installed in the HiLumi LHC underground galleries to host the electronics that control and drive the new crab cavities (devices to tilt the beams before the interaction points to maximise crossing). As this system needs to react to the picosecond scale, the utmost precision is required and this can only be reached in an environment without disruption from electromagnetic fields coming from other systems. The Faraday cages provide such shielding, allowing the control electronics to work without external perturbations.

As well as the metallic panels to shield against electromagnetic fields, there are two other insulating layers: one made of rock wool for insulating temperature to keep radio frequency signals stable, and a sound-absorbing layer.