基于EPICS的X射线小角散射实验站控制和数据采集系统

发布时间：2018-01-08 23:22

本文关键词：基于EPICS的X射线小角散射实验站控制和数据采集系统　出处：《原子能科学技术》2017年08期 　论文类型：期刊论文

【摘要】：上海光源(Shanghai Synchrotron Radiation Facility,SSRF)X射线小角散射(small angle X-ray scattering,SAXS)光束线站的常规样品台、掠入射样品台、变温热台的控制程序及数据采集程序均是在LabVIEW环境下开发的,而基于步进电机的狭缝控制系统等则是在分布式控制的EPICS(Experimental Physics and Industrial Control System)环境下开发的。由于开发和运行环境不同,这些设备在联动控制时不可避免地存在网络延时的缺陷。本工作在EPICS环境下对运动控制、探测器数据采集和光强检测等控制进行集成,形成了统一的用户操作界面,操作简单,能极大提高实验效率,并在SAXS实验站得到了稳定应用。
[Abstract]:Shanghai Synchrotron Radiation Facility. The conventional sample station of small angle X-ray scattering (sax) beam line station and the grazing incident sample station are used in SSRF)X ray small angle scattering. The control program and data acquisition program of the thermostat are developed in LabVIEW environment. The slit control system based on step motor is used in EPICS (distributed control). Developed in the Experimental Physics and Industrial Control system. Due to the different development and run environments. These devices inevitably have the defects of network delay in the linkage control. This work integrates motion control, detector data acquisition and light intensity detection control in EPICS environment. A unified user interface is formed, which is easy to operate and can greatly improve the efficiency of the experiment, and has been applied stably in the SAXS experimental station.
【作者单位】：中国科学院上海应用物理研究所;
【基金】：国家自然科学基金资助项目(11405259)
【分类号】：O434.1;TP274.2
【正文快照】： 上海光源(Shanghai Synchrotron Radia-tion Facility,SSRF)是第三代同步辐射装置,是世界上同能区正在建造或设计中性能指标最先进的第三代同步辐射光源之一。目前已有13条光束线和16个实验站投入运行。X射线小角散射(small angle X-ray scattering,SAXS)光束线站是上海光源首

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