Title :
Recent technical trends of superconducting magnets in Japan. II. Stability and quench characteristics
Author :
Takao, Tomoaki ; Torii, S. ; Amemiya, N. ; Fukui, S. ; Hoshino, T. ; Ishiyama, A. ; Ninomiya, A. ; Yamaguchi, H. ; Satow, T. ; Tsukamoto, O.
Author_Institution :
Sophia Univ., Tokyo, Japan
fDate :
6/1/1999 12:00:00 AM
Abstract :
The committee on applied superconducting apparatuses and characteristics of superconductors, the Institute of Electrical Engineers of Japan (IEEJ) has made a database on superconducting magnets which were built over last ten years in Japan. The outline of the database is explained part I. In part II, stability and hot-spot temperature of a magnet are investigated. Minimum quench energies, minimum propagating zones, and Stekly´s stability factors are calculated using the database. Dependence of those stability parameters on the magnet scale is studied and the design trends of the stability are discussed. Hot-spot temperatures of the pool-cooled magnets at quench and energy dump process are also calculated based on the database, and the trends of design rules for the quench protection are studied.
Keywords :
database management systems; engineering computing; physics computing; stability; superconducting magnets; Institute of Electrical Engineers of Japan; Japan; Stekly´s stability factors; energy dump process; hot-spot temperature; minimum propagating zones; minimum quench energies; pool-cooled magnets; quench characteristics; stability; superconducting magnets; technical trends; Conductors; Current density; Data engineering; Laboratories; Metastasis; Protection; Stability criteria; Superconducting magnets; Superconductivity; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
