The Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator. It consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles along the way.

The Large Hadron Collider (LHC) is the world's largest and highest-energy particle accelerator. [1] [2] It was built by the European Organization for Nuclear Research (CERN) between 1998 and 2008, in collaboration with over 10,000 scientists, and hundreds of universities and laboratories across more than 100 countries. [3]

The Large Hadron Collider (LHC) is the most powerful particle accelerator ever built. The accelerator sits in a tunnel 100 metres underground at CERN, the European Organization for Nuclear Research, on the Franco-Swiss border near Geneva, Switzerland.

Size and Structure. Now, let’s talk about the size of this scientific giant. The LHC is a massive tunnel, shaped in a ring, and it’s roughly 27 kilometers (or about 17 miles) in circumference. That’s longer than the entire island of Manhattan! And it’s not just long - the LHC also goes deep.

The precise circumference of the LHC accelerator is 26 659 m, with a total of 9300 magnets inside. Not only is the LHC the world’s largest particle accelerator, just one-eighth of its cryogenic distribution system would qualify as the world’s largest fridge.

The LHC consists of a 27-kilometer long beam-pipe. This sounds large but how large is it? Usually, when you see an illustration of the LHC on a map, it's a map of the LHC at its actual location. However, to understand how large the LHC is, it is more instructive to see the LHC ring on a map of your home town.

LHC consists of eight 2.45-km-long arcs, and eight 545-m-long straight sections. The arcs contain the dipole ‘bending’ magnets, with 154 in each arc. An insertion consists of a long straight section plus two (one at each end) transition regions — the so-called ‘dispersion suppressors’.

It consists of a 27-kilometre ring of supercon-ducting magnets with a number of accelerating structures that boost the energy of the particles along the way. Why is it CaLLed the “Large hadron CoLLider”? • "Large" refers to its size, approximately 27km in circumference.

CERN. At CERN, we probe the fundamental structure of particles that make up everything around us. We do so using the world's largest and most complex scientific instruments.

LHC is the most powerful particle accelerator in the world and it´s located in CERN on the France-Swiss border. It uses part of the same structure as the former accelerator (LEP), and it has a circumference of 27 km long and runs 100 m underground. Many of the values and parameters below are explained in more detail in the section Physics at LHC.