Measuring the magnetic parameters of the multipole magnets for the specialized MLS source of synchrotron radiation

A metrology light source (MLS) is currently being constructed at the Physikalisch-Technische Bundesanstalt State Metrology Institute (Germany) for work in the range from IR to far UV radiation. The MLS system is composed of a storage ring with a circumference of 48 m for electrons with energies of up to 600 MeV and a 100-MeV microtron. The magnetic system of the storage ring contains 8 dipole magnets, 24 quadrupole magnets, 24 sextupole magnets, and 4 octupole magnets, all designed and produced by the Budker Institute of Nuclear Physics. The radial rotating coil method has been used in magnetic measurements of the multipole magnets. The measuring system is described, and the experimental results are presented.