Signal processing of data from short sample tests for the projection of conductor performance in ITER magnets

摘要

Qualification of the ITER conductor is absolutely necessary. Testing large scale conductors is expensive and time- consuming. To test 3 - 4 m long straight samples in a bore of a split solenoid is a relatively economical way in comparison with the fabrication of a coil to be tested in a bore of a background field solenoid. However, testing short samples may give ambiguous results due to different constraints in current redistribution in the cable or other end effects which are not present in the large magnet. This paper discusses the processes taking place in the ITER conductor, conditions when conductor performance could be distorted and possible signal processing to deduce the behaviour of ITER conductors in ITER magnets from the test data.