Identity area
Reference code
Title
Date(s)
- 1984-86 (Creation)
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Extent and medium
Object
Context area
Name of creator
Biographical history
Repository
Archival history
Immediate source of acquisition or transfer
Content and structure area
Scope and content
OPAL was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. OPAL's central tracking system consists of (in order of increasing radius) a silicon microvertex detector, a vertex detector, a jet chamber, and z-chambers. All the tracking detectors work by observing the ionization of atoms by charged particles passing by: when the atoms are ionized, electrons are knocked out of their atomic orbitals, and are then able to move freely in the detector. These ionization electrons are detected in the dirfferent parts of the tracking system. This piece is a prototype of the jet chambers
Appraisal, destruction and scheduling
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Conditions of access and use area
Conditions governing access
Public
Conditions governing reproduction
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Script of material
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Physical characteristics and technical requirements
1.50 m 1.50 m 5.00 m 1.3 ton
Finding aids
Allied materials area
Existence and location of originals
On loan, 2052.
Existence and location of copies
Related units of description
Notes area
Note
lighting, mobile support structure and plexi-glass cover included. (Photos: Exhibition "TESLA - Licht der Zukunft" VW-Forum, Berlin (Germany).
