Identity area
Reference code
Title
Date(s)
- 1970 (Creation)
Level of description
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
Three pieces. Wire chambers used for the beams at CERN's Proton Synchrotron accelerator in the 1970s. Multi-wire detectors contain layers of positively and negatively charged wires enclosed in a chamber 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.
Appraisal, destruction and scheduling
Accruals
System of arrangement
Conditions of access and use area
Conditions governing access
Public
Conditions governing reproduction
Language of material
Script of material
Language and script notes
Physical characteristics and technical requirements
50 cm 2 cm 50 cm
Finding aids
Allied materials area
Existence and location of originals
On loan, CERN User's Office.
Existence and location of copies
Related units of description
Notes area
Note
<!--HTML--><U>Previous exhibition venues</U>: <br />- University of Paris (October 1999)
