Thermal stability of high current density magnets

Kenji Ishibashi, M. Wake, M. Kobayashi, A. Katase

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The stabilization theories hitherto proposed for superconducting (SC) magnets are not fully developed for application to high current density magnets such as pulsed dipole magnets for a synchrotron. Hence, thermal stability in such high current density magnets is studied by obtaining a minimum energy of thermal disturbances which barely leads a magnet to quench. To find the minimum energy by calculation a dynamic simulation of temperature distribution along a conductor is carried out following an application of the disturbances on the conductor. The minimum energy is found to depend largely on time duration and spatial length of the disturbances. The values of the minimum energy given by calculation agree almost with the experimental results obtained for a coil which simulates a pulsed dipole magnet from the viewpoint of cooling. Discussion is also made in relation to the minimum energy on the performance of a pancake type solenoid magnet which has the same cooling as in the simulating coil.

Original languageEnglish
Pages (from-to)633-638
Number of pages6
JournalCryogenics
Volume19
Issue number11
DOIs
Publication statusPublished - Jan 1 1979

Fingerprint

Magnets
high current
Thermodynamic stability
thermal stability
Current density
magnets
current density
disturbances
coils
conductors
energy
dipoles
Cooling
cooling
Superconducting magnets
Solenoids
superconducting magnets
solenoids
Synchrotrons
synchrotrons

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Ishibashi, K., Wake, M., Kobayashi, M., & Katase, A. (1979). Thermal stability of high current density magnets. Cryogenics, 19(11), 633-638. https://doi.org/10.1016/0011-2275(79)90064-X

Thermal stability of high current density magnets. / Ishibashi, Kenji; Wake, M.; Kobayashi, M.; Katase, A.

In: Cryogenics, Vol. 19, No. 11, 01.01.1979, p. 633-638.

Research output: Contribution to journalArticle

Ishibashi, K, Wake, M, Kobayashi, M & Katase, A 1979, 'Thermal stability of high current density magnets', Cryogenics, vol. 19, no. 11, pp. 633-638. https://doi.org/10.1016/0011-2275(79)90064-X
Ishibashi K, Wake M, Kobayashi M, Katase A. Thermal stability of high current density magnets. Cryogenics. 1979 Jan 1;19(11):633-638. https://doi.org/10.1016/0011-2275(79)90064-X
Ishibashi, Kenji ; Wake, M. ; Kobayashi, M. ; Katase, A. / Thermal stability of high current density magnets. In: Cryogenics. 1979 ; Vol. 19, No. 11. pp. 633-638.
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