Title :
Frequency effects in a pancake coil
Author :
Shaked, N. ; Kanter, M. ; Kaplan, Z. ; Singer, S.
Author_Institution :
Lab. of Propulsion Phys., Soreq Nucl. Res. Center, Yavne, Israel
fDate :
3/1/1995 12:00:00 AM
Abstract :
An aluminum pancake coil is designed to amplify pulsed power in the range of 100-MW to a 100-m/spl Omega/ electro-thermal load. For the tradeoff between the coil energy density limit and energy discharge efficiency, the frequency dependence of its current and magnetic field distributions is calculated in the range of DC to 1 kHz. Near DC magnetic field measurements are compared to the calculated results. Energy efficiency of about 85% has been measured for the discharge of 1.6 kA from the coil to a linear resistive load in the range of 40-400 m/spl Omega/.<>
Keywords :
coils; current distribution; electrothermal launchers; inductive energy storage; magnetic fields; power supplies to apparatus; pulsed power technology; 0 to 1 kHz; 1.6 kA; 100 MW; 40 to 400 mohm; 85 percent; coil energy density limit; current distribution; electro-thermal load; energy discharge efficiency; inductive energy storage; linear resistive load; magnetic field distribution; pancake coil; pulsed power amplification; Coils; Conductors; Frequency; Magnetic field measurement; Plasma applications; Plasma confinement; Pulse amplifiers; Pulse shaping methods; Pulsed power supplies; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
