The generation of high frequency oscillatory magnetic fields represents a fundamental component underlying the successful implementation of neutron resonant spin-echo spectrometers, a class of instrumentation critical for the high-resolution extraction of dynamical excitations (structural and magnetic) in materials. In this paper, the setup of the resonant circuits at the longitudinal resonant spin-echo spectrometer RESEDA is described in comprehensive technical detail. We demonstrate that these circuits are capable of functioning at frequencies up to 3.6 MHz and over a broad bandwidth down to 35 kHz using a combination of signal generators, amplifiers, impedance matching transformers, and a carefully designed cascade of tunable capacitors and customized coils.
@article{arxiv.2010.04161,
title = {Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy},
author = {J. K. Jochum and A. Hecht and O. Soltwedel and C. Fuchs and J. Frank and E. Faulhaber and J. C. Leiner and C. Pfleiderer and C. Franz},
journal= {arXiv preprint arXiv:2010.04161},
year = {2020}
}
Comments
15 pages, 14 figures. published in IOP Measurement Science and Technology