Speaker
Dr
Stephan Russenschuck
(CERN AT-MEL-EM)
Description
The presentation will cover the polarity definitions and the
conventions in the
different coordinate systems used for beam tracking, field
computation and magnetic
measurements. In particular the definition of what a skew dipole
magnet is, could
lead to misunderstanding. Continuity problems in the spool piece bus
bars which
could affect corrector magnet polarity are addressed. The polarity
of the main
magnets with diodes has been verified relying only on Ampere’s law.
The next steps
will be the verification of the polarities in the insertion magnets
(and in
particular those which are installed in the tunnel with their
connections pointing
downstream of beam 1), the polarity of BI equipment, the handling of
non-
conformities etc.
Author
Dr
Stephan Russenschuck
(CERN AT-MEL-EM)
