Speaker
Mr
Guy Deferne
(CERN)
Description
Three Single Stretched Wire systems are used at CERN to measure the axis, roll
angle and integrated gradient (Gdl) of LHC main quadrupoles as well as the axis and
roll angle of associated correctors. A statistical qualification of the systems
based on the results of more than 40 SSS measured both at warm and cold conditions
will be presented.
In particular we will describe in detail:
- a special measurement procedure and data treatment algorithm developed to reduce
the influence of the stretched wire magnetic susceptibility.
- the qualification of different types of wire
- a calibration procedure of the systems roll angle offset as a function of the
magnets longitudinal position
Author
Mr
Guy Deferne
(CERN)
Co-authors
Mr
Joseph DiMarco
(Fermi National Accelerator Laboratory)
Mr
Nikolay Smirnov
(CERN)
