Abstract
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.
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References
T. Nishikawa, TRISTAN electron positron collider, “Proc. XII-th Int. Conf. on High Energy Accelerators” (1984), p. 143.
K. Halbach, Fields and first order perturbation effects in two-dimensional conductor dominated magnets, Nucl. Instrum. Methods 78:185 (1970).
S. Mitsunobu et al, Test dipole magnets for the TRISTAN superconducting proton ring, IEEE Trans. Nucl. Sci. NS-28: 3266 (1981).
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© 1986 Plenum Press, New York
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Tsuchiya, K. et al. (1986). A Prototype Superconducting Insertion Quadrupole Magnet for Tristan. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 31. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2213-9_19
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DOI: https://doi.org/10.1007/978-1-4613-2213-9_19
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-9299-9
Online ISBN: 978-1-4613-2213-9
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