DocumentCode
819009
Title
High Precision Scrapers for ISR Luminosity Measurements
Author
Potter, K. ; Turner, S.
Author_Institution
CERN Geneva, Switzerland
Volume
22
Issue
3
fYear
1975
fDate
6/1/1975 12:00:00 AM
Firstpage
1589
Lastpage
1592
Abstract
Two intersections of the CERN ISR have recently been equipped with beam scrapers. Controlled by computer, they permit the vertical profile of the circulating current intensity to be plotted automatically, so that the position of the centre of a beam can then be determined to within 10 microns. This has been used to calibrate the beam displacements used in the standard "Van der Meer" type luminosity measurements while the particle density profiles allow a direct evaluation of the luminosity. A description of the mechanism and the computer control system is given and some results are discussed.
Keywords
Assembly; Automatic control; Blades; Extraterrestrial measurements; Heating; Particle beam measurements; Particle beams; Particle scattering; Protons; Structural beams;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1975.4327942
Filename
4327942
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