Title :
Minimum-volume coil arrangements for generation of uniform magnetic fields
Author_Institution :
Dept. of Radiol., New York Univ. Sch. of Med., NY, USA
fDate :
11/1/2002 12:00:00 AM
Abstract :
This paper describes an optimization method for designing electromagnetic coil arrangements that generate uniform magnetic fields. The method can accurately and efficiently determine an arrangement that minimizes the volume of the coils. An important advantage of the method is that the solutions it generates are guaranteed to be global minimums. The method may be useful for designing large superconducting magnets, since their cost depends strongly on the amount of superconducting wire required. It is also shown that the method can be applied to minimize the power consumption of resistive magnets.
Keywords :
coils; electromagnets; magnetic resonance imaging; minimisation; superconducting magnets; MRI; coil volume minimization; electromagnetic coil arrangements; guaranteed global minimum solutions; large superconducting magnets; magnetic resonance imaging; minimum-volume coil arrangements; optimization method; power consumption minimization; resistive magnets; superconducting wire; uniform magnetic field generation; Costs; Current density; Energy consumption; Grid computing; Linear programming; Magnetic fields; Magnetic resonance imaging; Optimization methods; Superconducting coils; Superconducting magnets;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.804803