Abstract
This paper describes the design and parameters of a quadrupole mirror structure for testing the mechanical, thermal and quench performance of single shell‐type superconducting quadrupole coils at field, current and force levels similar to that of real magnet. The concept was experimentally verified by testing two quadrupole coils, previously used in quadrupole models, in the developed mirror structure in the temperature range from 4.5 to 1.9 K. The coils were instrumented with voltage taps, heaters, and strain gauges to monitor their mechanical and thermal properties and quench performance. A new quadrupole coil made of improved Nb3Sn RRP‐108/127 strand and cable insulation based on E‐glass tape was also tested using this structure. The fabrication and test results of the quadrupole mirror models are reported and discussed.
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