A Prototype Superconducting Insertion Quadrupole Magnet for Tristan
An iron-free superconducting quadrupole with a 140 mm coil inner diameter and a, field gradient of 70 T/m has been built and tested as a prototype magnet for use in low beta insertions of the TRISTAN Main Ring. The magnet is made from 27 strands of NbTi Rutherford type cable clamped with stainless steel collars. A maximum field gradient of 80 T/m with a peak field of 6.0 T in the coil was obtained after five quenches. Quench characteristics and field gradient homogeneity of this quadrupole were studied in a vertical cryostat. Mechanical disturbance energies in the coil were also obtained from measurements of the voltages across the coil.
KeywordsPeak Field Disturbance Energy Outer Coil Individual Coil High Energy Physic Experiment
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