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Measurement of Fast Voltage Transients in High-Performance {\rm Nb}_{3}{\rm Sn} Magnets

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8 Author(s)
J. Lizarazo ; Lawrence Berkeley Nat. Lab., Berkeley, CA ; A. F. Lietzke ; G. L. Sabbi ; P. Ferracin
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The superconducting magnet group at Lawrence Berkeley National Laboratory has been developing Nb3Sn high-field accelerator magnet technology for the last fifteen years. In order to support the magnet R&D effort, we are developing a diagnostic system that can help identify the causes of performance limiting quenches by recording small flux-changes within the magnet prior to quench-onset. These analysis techniques were applied to the test results from recent Nb3Sn magnets. This paper will examine various types of events and their distinguishing characteristics. The present measurement techniques are discussed along with the design of a new data acquisition system that will substantially improve the quality of the recorded signals.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:18 ,  Issue: 2 )