when is the large hadron collider being turned on
Large Hadron Collider On 5 April 2015, the LHC restarted after a two-year break, during which the electrical connectors between the bending magnets were upgraded to safely handle the current required for 7 TeV per beam (14 TeV).[5][97] However, the bending magnets were only trained to handle up to 6.5 TeV per beam (13 TeV total), which became the operating energy for 2015 to 2017.[98] The energy was first reached on 10 April 2015.[99] The upgrades culminated in colliding protons together with a combined energy of 13Â TeV.[100] On 3 June 2015 the LHC started delivering physics data after almost two years offline.[101] In the following months it was used for proton-proton collisions, while in November the machine switched to collisions of lead ions and in December the usual winter shutdown started.