Resources Image Topic: Accelerators

Old accelerators images gallery

Horn installed in CNGS tunnel
The horn is installed for the CERN Neutrinos to Gran Sasso (CNGS) project. (Image: CERN)
Small Medium Large Original
The CNGS target
The CERN Neutrinos to Gran Sasso (CNGS) target ‘magazine’ of five target units. Each unit contains a series of 10-cm long graphite rods distributed over a length of 2 m. It is designed to maximize the number of secondary particles produced. (Image: CERN)
Small Medium Large Original
Raising the last LEP dipole
The last of the 3280 dipole magnets from the Large Electron-Positron (LEP) collider is seen on its journey to the surface on 12 February 2002. The LEP era, which began at CERN in 1989 and ended 2000, comes to an end. (Image: CERN)
Small Medium Large Original
Diagram of the CNGS neutrino beam
Protons accelerated in the Super Proton Synchrotron (SPS) at CERN collide with a graphite target producing mainly pions and kaons, particles with short lifetimes, which will decay in the decay tube, producing muon neutrinos. (Image: CERN)
Small Medium Large Original
Diagram of CNGS neutrinos travelling through the Earth
Neutrinos produced by decays of the products of collisions between protons accelerated at the Super Proton Synchrotron (SPS) and a graphite fixed target at CERN pass through the Earth to a huge detector at Gran Sasso in Italy. (Image: CERN)
Small Medium Large Original
Removing the LEP radio-frequency cavities
Engineers remove the copper (non-superconducting) radio-frequency cavities located near to the L3 experiment at the Large Electron-Positron (LEP) collider, which closed in 2000. (Image: CERN)
Small Medium Large Original
At work on LEP, the world’s most powerful electron–positron collider
The LHC will be built inside the same tunnel as an existing accelerator, the Large Electron Positron (LEP) collider which came on stream in 1989. (Image: CERN)
Small Medium Large Original
LEP copper accelerating cavities
These copper cavities were used to generate the radio frequency electric field that was used to accelerate electrons and positrons around the 27-km Large Electron-Positron (LEP) collider at CERN, which ran from 1989 to 2000. (Image: CERN)
Small Medium Large Original
LEP superconducting cavity
Engineers work in a clean room on one of the superconducting cavities for the upgrade to the LEP accelerator, known as LEP-2. The use of superconductors allow higher electric fields to be produced so that higher beam energies can be reached. (Image: CERN)
Small Medium Large Original
Diagram of a LEP superconducting cavity
This diagram gives a schematic representation of the superconducting radio-frequency cavities at LEP. Liquid helium is used to cool the cavity to 4.5 degrees above absolute zero so that very high electric fields can be produced. (Image: CERN)
Small Medium Large Original
Diagram of a LEP dipole magnet
LEP used a revolutionary design of dipole magnet, having magnetic plates embedded in an iron-concrete yoke. Such magnets bend the beam around its circular path. (Image: CERN)
Small Medium Large Original
The LEP and SPS cross-section
Diagram showing the cross-section of the LEP installation with the Alps in the background, the Geneva plain in the middle and the LEP underground experimental areas in the foreground. (Image: CERN)
Small Medium Large Original
A sextupole magnet for LEP
Sextupole magnets apply corrections to the spread of the beam allowing better focusing to be achieved. (Image: CERN)
Small Medium Large Original
Prototype superconducting radio-frequency cavity for LEP
This niobium superconducting cavity was part of the prototype stages for an upgrade to LEP, known as LEP-2. Superconducting cavities would eventually replace the traditional copper cavities and allow beam energies of 100 GeV. (Image: CERN)
Small Medium Large Original
Small Medium Large Original

ID: CERN-EX-0511019-1

The horn is installed for the CERN Neutrinos to Gran Sasso (CNGS) project.

04 Nov 2005

Conditions of Use © 2005 CERN

Maximilien Brice