Abstract
We have developed two epoxy-impregnated superconducting magnets using the NbTi superconductor with a cold bore of 100 mm, which consist of three coils, respectively. The first magnet has a bobbin to support three coils, which exhibits poor performance after several training quenches. The poor performance may be caused by epoxy fracture due to stress concentration results from deformation of the windings during energized. To achieve higher magnetic field using NbTi superconductor alone, we design a second superconducting magnet with three bobbins. The second magnet exhibits higher superconducting properties after several training quenches. This paper presents the magnet design and the test results. The detailed analysis of the superconducting performance difference between the two magnets is also discussed.
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Ren, Y., Wang, F., Chen, Z. et al. Mechanical Stability of Superconducting Magnet with Epoxy-Impregnated. J Supercond Nov Magn 23, 1589–1593 (2010). https://doi.org/10.1007/s10948-010-0816-7
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DOI: https://doi.org/10.1007/s10948-010-0816-7