Analysis of voltage signals from superconducting accelerator magnets

摘要

We present two techniques used in the analysis of voltage tap data collected during recent tests of super-conducting magnets developed by the Superconducting Magnet Program at Lawrence Berkeley National Laboratory. The first technique was used on a quadrupole to provide information about quench origins that could not be obtained using the time-of-flight method. The second technique illustrates the use of data from transient flux imbalances occurring during magnet ramping to diagnose changes in the current-temperature margin of a superconducting cable. In both cases, the results of this analysis con-tributed to make improvements on subsequent magnets.