Measurements on electrical contact resistance of internal coil connections for LHC high field dipole magnets

Measurements are presented of electrical contacts of internal coil connections in high-field dipole magnets for the proposed LHC (Large Hadron Collider) machine at CERN. A test station was built to test samples up to 40 kA in an external magnetic field of up to 6 T at 4.2 K. The experimental setup, the samples, and the results are described and discussed.