Scholarlink

Purpose <p>For beamlines with numerous experimental methods and a need for high automation, system integration and operational management face significant challenges. As the only synchrotron radiation X-ray beamline in China capable of conducting experiments with radioactive samples, the Radioactive Materials Beamline (BL13SSW) of Shanghai Synchrotron Radiation Facility (SSRF) features multiple experimental methods. Meanwhile, it has over 100 online control objects, it is necessary to coordinate the functions of various components in real time to support the execution and switching of different experimental methods.</p> Methods <p>To address this, a distributed integrated control and data acquisition system suitable for the BL13SSW beamline has been designed and developed based on EPICS, CSS and Python. It is designed based on the concept of loose coupling and modular design, and it decomposes various experimental tasks into independent subtasks. The system adopts a TTL synchronous pulse trigger mechanism to achieve precise synchronization among multiple acquisition systems, which effectively reduces data acquisition latency and improves the signal-to-noise ratio of experimental data. To address acquisition interruptions or pauses caused by communication delays or controller and detector electronics errors, a 2-s judgment logic is integrated to ensure the program can resume automatically. For radioactive sample measurements with low concentration and high signal-to-noise ratio requirements, the system is equipped with state-of-the-art low-noise data acquisition electronics. In addition, to handle the large number of devices and high network load at the beamline, network isolation is implemented for high-bandwidth online equipment, ensuring stable and smooth system operation without lag.</p> Results and conclusion <p>Finally, experimental verification of the software's functions and performance are carried out on various samples under different experimental methods. The experimental results show that the software operates stably, realizing the unified integration and automated control of multiple experimental methods, and significantly improving the experimental efficiency of the beamline and the convenience of user operations. Currently, this system has been officially opened for user operation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Integrated control and data acquisition system for the BL13SSW beamline at SSRF

  • 期刊论文

  • 发表日期：

    2026年5月9日

查看全文
  • Chunxia Hong,
  • Ping Zhou,
  • Jianbo Ma,
  • Jianrong Zeng,
  • Shangming He,
  • Xiuhong Li,
  • Fenggang Bian

摘要

Purpose

For beamlines with numerous experimental methods and a need for high automation, system integration and operational management face significant challenges. As the only synchrotron radiation X-ray beamline in China capable of conducting experiments with radioactive samples, the Radioactive Materials Beamline (BL13SSW) of Shanghai Synchrotron Radiation Facility (SSRF) features multiple experimental methods. Meanwhile, it has over 100 online control objects, it is necessary to coordinate the functions of various components in real time to support the execution and switching of different experimental methods.

Methods

To address this, a distributed integrated control and data acquisition system suitable for the BL13SSW beamline has been designed and developed based on EPICS, CSS and Python. It is designed based on the concept of loose coupling and modular design, and it decomposes various experimental tasks into independent subtasks. The system adopts a TTL synchronous pulse trigger mechanism to achieve precise synchronization among multiple acquisition systems, which effectively reduces data acquisition latency and improves the signal-to-noise ratio of experimental data. To address acquisition interruptions or pauses caused by communication delays or controller and detector electronics errors, a 2-s judgment logic is integrated to ensure the program can resume automatically. For radioactive sample measurements with low concentration and high signal-to-noise ratio requirements, the system is equipped with state-of-the-art low-noise data acquisition electronics. In addition, to handle the large number of devices and high network load at the beamline, network isolation is implemented for high-bandwidth online equipment, ensuring stable and smooth system operation without lag.

Results and conclusion

Finally, experimental verification of the software's functions and performance are carried out on various samples under different experimental methods. The experimental results show that the software operates stably, realizing the unified integration and automated control of multiple experimental methods, and significantly improving the experimental efficiency of the beamline and the convenience of user operations. Currently, this system has been officially opened for user operation.