August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

MgB2 superconductive short winding joints: mathematical prevision of current behaviours and experimental validations

Aug 28, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m F6 - Joints between Superconductors Mon-Af-Po1.09


Giovanni Valesi (ASG superconductors SpA)


The advent of new kind of superconductors can introduce a new application age. Modern magnet designs and applications push towards persistent mode system realized with multiple superconductive connected coils. The quality of field persistence is fundamental in order to characterize the goodness of the superconductive joint technical implementation. A theoretical methodology able to predict the field and the current evolution in the superconductive closed loops is necessary to introduce innovative material as MgB2 in fabrication technology and to develop robust joint techniques. ASG laboratory developed a new energetic model able to predict the ending currents of closing circuits and evaluate the persistent circuit total efficiency with short field acquisitions. This innovative model represents a powerful and flexible tool, as it is easily implementable in the study of arbitrary superconductive closed loops and applicable to complicated winding geometry. The mathematical method will be presented, and theoretical results will be compared with experimental measurements performed on specific MgB2 winding samples.

Submitters Country Italy

Primary author

Giovanni Valesi (ASG superconductors SpA)


Mr Alessio Capelluto (ASG Superconductors SpA) Dr Giovanni Masullo (ASG Superconductors SpA) Dr Roberto Marabotto (ASG Superconductors SpA)

Presentation materials