论文标题
中子共振自旋回波光谱法的振荡磁场
Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy
论文作者
论文摘要
高频振荡磁场的产生代表了成功实施中子共振旋转回波光谱仪的基本组成部分,这是一种对材料中动态激发(结构和磁)高分辨率提取至关重要的仪器。在本文中,用全面的技术细节描述了纵向共振的旋转回波光谱仪reseda的谐振电路的设置。我们证明,这些电路能够在最高3.6 MHz的频率下运行,并使用信号发生器,放大器,阻抗匹配的变压器以及精心设计的可调式能力和定制线圈的级联反应的组合使用信号发生器,放大器,阻抗匹配的变压器。
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.