Generation of flat-top pulsed magnetic fields with feedback control approach

TL;DR

This paper presents a simple, cost-effective feedback system that generates stable, flat-top pulsed magnetic fields up to 60.64 T, enhancing data resolution in high-field experiments.

Contribution

A novel feedback control system for pulsed magnets that achieves highly stable flat-top magnetic fields with minimal complexity and cost.

Findings

Achieved flat-top magnetic fields up to 60.64 T

Field stability of ±0.005 T demonstrated

System is simple, compact, and cost-effective

Abstract

We describe the construction of a simple, compact, and cost-effective feedback system that produces flat-top field profiles in pulsed magnetic fields. This system is designed for use in conjunction with a typical capacitor-bank driven pulsed magnet, and was tested using a 60-T pulsed magnet. With the developed feedback controller, we have demonstrated flat-top magnetic fields as high as 60.64 T with an excellent field stability of +-0.005 T. The result indicates that the flat-top pulsed magnetic field produced features high field stability and an accessible field strength. These features make this system useful for improving the resolution of data with signal averaging.