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Flash tube used in Gargamelle. Gargamelle was the name given to a big bubble chamber built at the Saclay Laboratory in France during the late 1960s. It was designed principally for the detection at CERN of the elusive particles called neutrinos.Gargamelle is on display at CERN in the Microcosm garden.

Was used in ISR (Intersecting Storage Ring) split field magnet experiment. Multi-wire detectors contain layers of positively and negatively charged wires enclosed in a chamber full of gas. A charged particle passing through the chamber knocks negatively charged electrons out of atoms in the gas, leaving behind positive ions. The electrons are pulled towards the positively charged wires. They collide with other atoms on the way, producing an avalanche of electrons and ions. The movement of these electrons and ions induces an electric pulse in the wires which is collected by fast electronics. The size of the pulse is proportional to the energy loss of the original particle.

AOIP Paris. Type P12

Old. Made at CERN.

central region of the ion source for the synchro-cyclotron

Target support for the proton synchrotron. The Proton Synchrotron (PS) is the oldest and most versatile of CERN's accelerators. The PS was commissioned in 1959 and has been running continuously ever since. With a diameter of 200 metres and reaching a energy of 28 mev, it was for a while the most powerful accelerator in the world.