Speaker
Mr
Olaf Dunkel
(CERN)
Description
The manufacture and magnetic measurement activity of the superconducting magnets
for
LHC has now achieved its peak. Precise magnetic measurements of various types must
be performed on hundreds of dipole and quadrupole magnets on the warm and cold test
stands at CERN but also during the manufacturing process in the member states’
industry as a quality control. A wide range of requirements must be covered by the
measuring systems such as harmonic field measurements, quadrupole axis and gradient
measurements, optical and geometrical checks combined with magnetic measurements,
static A.C. measurements and also quench location or propagation.
Nearly all currently used instruments and measuring heads have been manufactured,
assembled and calibrated in a dedicated laboratory at CERN, in particular all
systems using rotating coil techniques. This presentation gives an overview of
CERN’s coil manufacture and measuring head assembly and maintenance facility as
well
as of the activities in the magnetic calibration laboratory where initial
measurements and periodic maintenance checks are performed.
Author
Mr
Olaf Dunkel
(CERN)
Co-authors
Mr
Bernard Girod
(Spie-Trindel-Cegelec)
Mr
David Giloteaux
(CERN)
Dr
Jacques Billan
(CERN)
Dr
Juan Garcia-Perez
(CERN)
Mrs
Lucette Gaborit
(CERN)
Mr
Peter Galbraith
(CERN)
Mr
Richard Beltron
(CERN)
