Design and fabrication of highly stabilized close-packed superconducting solenoid

Author

Moriyama, H. ; Mitsui, H. ; Ohmori, J. ; Mine, S. ; Nishijima, S. ; Okada, T.

Author_Institution

Toshiba Corp., Yokohama, Japan

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

3028

Lastpage

3031

Abstract

The highly stabilized superconducting solenoid has been fabricated successfully by the dry winding method with the appropriate design of former and ground insulators. In this work the unexpected decrease of quench current was remarked as the index of the instability in the superconducting solenoids because it becomes a serious problem in practical application. The change of the contact condition between the former and the winding was thought to induce the instability therefore the optimization of the contact condition was tried. The former with high thermal contraction and high rigidity and the ground insulator coated with the release film were selected for the solenoid design. It was found that the highly stable superconducting solenoids could be designed and fabricated by this selection

Keywords

quenching (thermal); superconducting coils; superconducting magnets; winding (process); close-packed superconducting solenoid; contact condition; dry winding method; former design; ground insulators; instability; quench current; release film; rigidity; thermal contraction; Aluminum alloys; Constitution; Fabrication; Insulation; Manufacturing; Solenoids; Steel; Superconducting coils; Superconducting films; Wounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511514

Filename

511514