Title :
Quench simulation of 4.7 Tesla superconducting magnet for magnetic resonance spectroscopy
Author :
Fujimura, S. ; Morita, M.
Author_Institution :
Mitsubishi Electr. Corp., Hyogo, Japan
fDate :
3/1/1991 12:00:00 AM
Abstract :
A description is given of a simulation method that calculates the time dependencies of current and voltage for multiple coils under the condition that the coils were quenched. This method is used to calculate the current changes and temperature rise in a 4.7-T superconducting small bore magnet. It is found that the temperature rise is less than 200 K in superconducting shim coils and 125 K in main coils. Consequently, coils can be protected without protection resistance
Keywords :
coils; magnetic resonance spectroscopy; superconducting magnets; 4.7 T; magnetic resonance spectroscopy; main coils; quench; shim coils; simulation method; small bore magnet; superconducting magnet; temperature rise; time dependencies; Equations; Heat transfer; Magnetic resonance; Protection; Resistance heating; Spectroscopy; Superconducting coils; Superconducting magnets; Temperature dependence; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
