【摘要】 上海光源硬X射线微聚焦光束线站的控制及数据采集系统均是在EPICS(Experiment Physics and Industrial Control System)环境下开发的,但基于EPICS软件的荧光扫描系统无法满足荧光面扫描实验的一些特定要求,包括扫描数据实时显示、变步长扫描、多个任意位置样品连续扫描等。对此,采用了Bluesky与EPICS软件相结合的方法,基于Python语法结构设计了控制和数据采集系统,集成了运动控制、光强探测和荧光信号采集功能,实现了数据表格的实时显示、荧光图谱的绘制、自适应步长扫描和峰值数据自动计算、多个任意位置样品连续扫描和二维方形螺旋扫描等荧光面扫描相关技术。该系统使用户简单操作即可完成复杂的荧光面扫描,提高了实验灵活性和实验效率。更多还原

【Abstract】 [Background] The control and data acquisition system of the Shanghai synchrotron radiation facility(SSRF) hard X-ray microfocus beamline station was developed in the experiment physics and industrial control system(EPICS) environment. The existing fluorescence mapping system using EPICS software does not meet some specific requirements of fluorescence experiments. [Purpose] This study aims to flexibly realize complicated fluorescent mapping techniques for SSRF hard X-ray microfocus beamline. [Methods] Bluesky and EPICS software were combined to design and implement a control and data acquisition system based on Python grammar structure.Functionalities such as motion control, light intensity detection and fluorescence signal acquisition were integrated in this system. [Results] This system realizes real-time display of detected data and fluorescence mapping, adaptive step-size scanning, automatic calculation of peak statistics, continuous scanning of different samples in any spatial positions and two-dimensional square-spiral mapping. [Conclusion] This proposed system allows users to perform complex fluorescence mapping with simple operation. It greatly improves the flexibility and efficiency of the experiment.更多还原