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Gargamelle optical tube
CERN-OBJ-DE-033 · Unidad documental simple · 1970
Parte de Heritage Collection Test

Gargamelle was the name given to a big bubble chamber built at the Saclay Laboratory in France during the late 1960s. The experiment ran at CERN from 1970 - 1976 and in 1973 found the first experimental evidence of the particles responsible for transmitting the weak force. The weak force, one of the 4 fundamental interactions at work in the universe, has long been the subject of research at CERN. The force is responsible for radioactivity and is the reason why the sun shines. Gargamelle observed what is known as neutral currents, the process of a neutrino and electron transforming into a muon and a neutrino by exchanging an electrically neutral force carrier. The interaction was triggered by a beam of neutrinos and recorded by photographing the trail of bubbles left behind in the freon that filled the experiment's main chamber. Gargamelle has been conserved and is now displayed in the Microcosm garden.

Computer
CERN-OBJ-IT-004 · Unidad documental simple
Parte de Heritage Collection Test

Special terminals for the first computer ever used by CERN library.

Breskin wire chamber
CERN-OBJ-DE-035 · Unidad documental simple · 1970
Parte de Heritage Collection Test

Prototype made by Breskin.Has never been used. Breskin was a ph.d student working under Charpak supervision. The dimensions include the support.

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PS wire chamber
CERN-OBJ-DE-037 · Unidad documental simple · 1970
Parte de Heritage Collection Test

A wire chamber used at CERN's Proton Synchrotron accelerator in the 1970s. 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.

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