论文标题
涉及时间涉及的小角度中子散射实验的优化策略和人工制品
Optimization strategies and artefacts of time-involved small angle neutron scattering experiments
论文作者
论文摘要
动力学的小角度散射可在缓慢的周期性扰动下访问中尺度系统的微观特性。通过连锁中子脉冲，样品调制和检测器信号的相位，所谓的时间涉及的时间涉及的小角度中子散射实验（Tisane）可以利用中子速度的扩散和记录数据，而在时间尺度上没有重大牺牲的时间尺度上的数据，以下是微尺度。我们回顾了tisane的优化策略，这些策略是由数据获取过程和数据分析过程的特定方面从基本的操作原理开始的。由于在MNSI中的Skyrmion Lattice的响应，在磁场稳定天空晶格的磁场方向上，Skyrmion lattice在MNSI中的响应来说明了由于时间固定和中子斩波器脉冲宽度而导致的典型数据伪像。
Kinetic small-angle neutron scattering provides access to the microscopic properties of mesoscale systems under slow, periodic perturbations. By interlocking the phases of neutron pulse, sample modulation, and detector signal, so-called Time-Involved Small Angle Neutron scattering Experiments (TISANE) allow to exploit the neutron velocity spread and record data without major sacrifice in intensity at time-scales down to micro-seconds. We review the optimization strategies of TISANE that arise from specific aspects of the process of data acquisition and data analysis starting from the basic principles of operation. Typical artefacts of data recorded in TISANE due to the choice of time-binning and neutron chopper pulse width are illustrated by virtue of the response of the skyrmion lattice in MnSi under periodic changes of the direction of the magnetic field stabilizing the skyrmion lattice.
