Related Experiment Video
Updated: Nov 15, 2025

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
Published on: December 22, 2018
Compact megajoule-class pulsed power supply for generating long-pulsed magnetic fields
Kazuki Matsui1, Tomoki Kanda1, Yoshihiko Ihara2
1Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
Abstract:
A pulsed power supply with a compact and low-cost electric-double-layer-capacitor (EDLC) is developed for generating pulsed magnetic fields with a long pulse duration of a few seconds. The system is demonstrated in three experimental setups using a 10.7 F- or 50 F-EDLC capacitor bank. By using the 10.7 F-EDLC capacitor bank with a 27 mm wide-bore magnet, the pulsed magnetic field with a peak field strength of 24.3 T and a pulse duration of ∼1 s is generated. The field profiles are reproduced in the theoretical calculations taking Joule heating into account. The calculations are also used to discuss possible variations of the field profile for future investigations.
Related Concept Videos
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
Force On A Current Loop In A Magnetic Field
Energy In A Magnetic Field
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
Generating Electromagnetic Radiations
Torque On A Current Loop In A Magnetic Field
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Van de Graaff Generator
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...

