LHC Parameters

Taking a closer look at LHC

Some of the more important parameters.

  • Particles used: Protons (in proton- proton collisions) and heavy ions (Lead 82+)
  • Circumference: 26659 m.
  • Injected beam energy: 450 GeV (protons)
  • Nominal beam energy in physics: 7 TeV (protons)
  • Magnetic field at 7 TeV: 8.33 Tesla
  • Operating temperature: 1.9 K
  • Number of magnets: ~9300
  • Number of main dipoles: 1232
  • Number of quadrupoles: 858
  • Number of correcting magnets: 6208
  • Number of RF cavities: 8 per beam; Field strength at top energy ≈ 5 MV/m
  • RF frequency: 400 MHz
  • Revolution frequency: 11.245 kHz.
  • Power consumption: ~180 MW
  • Gradient of the tunnel: 1.4%
  • Difference between highest and lowest points: 122 m.

The values presented here are essentially what the machine presents, but repairs, improvements and upgrades during long shutdown (LS) cause some of them to vary slightly.

See more data... 


Xabier Cid Vidal, PhD in experimental Particle Physics for Santiago University (USC). Research Fellow in experimental Particle Physics at CERN from January 2013 to Decembre 2015. Currently, he is in USC Particle Physics Department ("Ramon y Cajal", Spanish Postdoctoral Senior Grants).

Ramon Cid Manzano, secondary school Physics Teacher at IES de SAR (Santiago - Spain), and part-time Lecturer (Profesor Asociado) in Faculty of Education at the University of Santiago (Spain), until his retirement in 2020. He has a Degree in Physics and in Chemistry, and is PhD for Santiago University (USC).



CERN Directory

CERN Experimental Program

Theoretical physics (TH)

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CERN Structure

CERN and the Environment



Detector CMS

Detector ATLAS

Detector ALICE

Detector LHCb

Detector TOTEM

Detector LHCf

Detector MoEDAL



 For the bibliography used when writing this Section please go to the References Section

© Xabier Cid Vidal & Ramon Cid - rcid@lhc-closer.es  | SANTIAGO (SPAIN) |