UA2 particle detector at CERN, Geneva

UA2 particle detector at CERN, Geneva

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Credit: CERN/SCIENCE PHOTO LIBRARY

Restrictions: Editorial use only. This image may not be used to state or imply endorsement by CERN of any product, activity or service

Caption: The UA2 detector at CERN, the European particle physics laboratory near Geneva, photographed dur- ing construction in 1981. UA2 (named for Undergr- ound Area 2) sits deep underground, & records the collisions of protons & antiprotons in CERN's Super-Proton-Synchrotron (SPS) collider. The det- ector consists of many components, which record & identify subatomic particles created in the coll- isions. The photo shows the central section of UA2 covered with phototubes which convert into electronic signals the flashes of light produced by charged particles traversing a scintillating material. UA2 shared with its sister experiment UA1 in the 1983 discovery of the W & Z particles.

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Keywords: cern, detector, european centre for, nuclear research, particle physics laboratory, ua2 detector

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