Matsui Kazuki, Kanda Tomoki, Ihara Yoshihiko, Kindo Koichi, Kohama Yoshimitsu
Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
Rev Sci Instrum. 2021 Feb 1;92(2):024711. doi: 10.1063/5.0032895.
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.
为了产生持续时间长达几秒的脉冲磁场，开发了一种采用紧凑且低成本的双电层电容器（EDLC）的脉冲电源。该系统在三个实验装置中进行了演示，使用了一个10.7 F或50 F的EDLC电容器组。通过将10.7 F的EDLC电容器组与一个内径为27 mm的磁体配合使用，产生了峰值场强为24.3 T且脉冲持续时间约为1 s的脉冲磁场。在考虑焦耳热的理论计算中再现了场分布。这些计算还用于讨论未来研究中场分布的可能变化。
