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A Prototype Superconducting Insertion Quadrupole Magnet for Tristan

  • K. Tsuchiya
  • K. Hosoyama
  • Y. Ajima
  • K. Egawa
  • N. Kumagai
  • S. Mitsunobu
  • Y. Sakakibara
  • A. Terashima
  • T. Ogitsu
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 31)

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.

Keywords

Peak Field Disturbance Energy Outer Coil Individual Coil High Energy Physic Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    T. Nishikawa, TRISTAN electron positron collider, “Proc. XII-th Int. Conf. on High Energy Accelerators” (1984), p. 143.Google Scholar
  2. 2.
    K. Halbach, Fields and first order perturbation effects in two-dimensional conductor dominated magnets, Nucl. Instrum. Methods 78:185 (1970).CrossRefGoogle Scholar
  3. 3.
    S. Mitsunobu et al, Test dipole magnets for the TRISTAN superconducting proton ring, IEEE Trans. Nucl. Sci. NS-28: 3266 (1981).Google Scholar

Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • K. Tsuchiya
    • 1
  • K. Hosoyama
    • 1
  • Y. Ajima
    • 1
  • K. Egawa
    • 1
  • N. Kumagai
    • 1
  • S. Mitsunobu
    • 1
  • Y. Sakakibara
    • 1
  • A. Terashima
    • 1
  • T. Ogitsu
    • 2
  1. 1.KEK, National Laboratory for High Energy PhysicsTsukuba, IbarakiJapan
  2. 2.University of TsukubaNiihari, IbarakiJapan

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