基于IDL的中子谱仪样品台运动仿真

Motion simulation of neutron spectrometer sample stage based on IDL

为实现对中子谱仪的标定数据处理,完成中子谱仪样品台运动仿真,利用交互式数据语言(IDL)进行了人机交互界面的软件开发,实现了样品台移动样品进行衍射测量的运动仿真。针对实际标定过程的需求确定了界面流程,从而设计出界面布局,分析了三维可视化原理,从而建立起样品台三维场景,构建了事件管理机制,从而实现人机交互;建立了样品台运动仿真计算模型;针对实验数据进行了实例演示。仿真结果表明:样品台可将样品中各个测量点依次移动到中子衍射点,并将测量矢量对齐散射矢量,实现了中子衍射测量。

In order to achieve processing of data calibrated by neutron spectrometer,and complete neutron spectrometer sample stage motion simulation,interactive data language(IDL)language is used to carry out software development of human-computer interaction interface and sample motion simulation of diffraction measurement is achieved by relying on the software. Interface flow is determined according to interface process determined by the needs of the actual calibration process,the three-dimensional visual scene of sample stage is established by threedimensional visualization principle,human-computer interaction is achieved by building the event management mechanism. Motion simulation model of sample stage is established. Example demonstration is presented according to experimental data. The simulation results show that the sample stage can move the sample measurement points to the neutron diffraction points in turn,and the measurement vectors are aligned with the scattering vectors to achieve neutron diffraction measurement.