ICALEPCS2023 - List of Authors (Chen, L.G.)

Paper	Title	Page
WE1BCO03	Design of the HALF Control System	958
	G. Liu, L.G. Chen, C. Li, X.K. Sun, K. Xuan, D.D. Zhang USTC/NSRL, Hefei, Anhui, People’s Republic of China
	The Hefei Advanced Light Facility (HALF) is a 2.2-GeV 4th synchrotron radiation light source, which is scheduled to start construction in Hefei, China in 2023. The HALF contains an injector and a 480-m diffraction limited storage ring, and 10 beamlines for phase one. The HALF control system is EPICS based with integrated application and data platforms for the entire facility including accelerator and beamlines. The unified infrastructure and network architecture are designed to build the control system. The infrastructure provides resources for the EPICS development and operation through virtualization technology, and provides resources for the storage and process of experimental data through distributed storage and computing clusters. The network is divided into the control network and the dedicated high-speed data network by physical separation, the control network is subdivided into multiple subnets by VLAN technology. Through estimating the scale of the control system, the 10Gbps control backbone network and the data network that can be expanded to 100Gbps can fully meet the communication requirements of the control system. This paper reports the control system architecture design and the development work of some key technologies in details.
	Slides WE1BCO03 [2.739 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-WE1BCO03
About •	Received ※ 02 October 2023 — Revised ※ 09 October 2023 — Accepted ※ 13 October 2023 — Issued ※ 26 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPDP035	Implementation of Synchronization Control Device for Fly-scan at Hefei Light Source
	L.G. Chen USTC/NSRL, Hefei, Anhui, People’s Republic of China
	In the field of synchrotron beamline station control, especially in the scanning experimental data acquisition application, the synchronization performance of the scanning execution device and the data acquisition device is one of the key factors related to the quality of the scanning data and the efficiency of the experiment. The traditional experimental beamline station scanning synchronization control generally adopts a software processing mode, which results in a long scanning time, low scanning efficiency, and poor synchronization accuracy due to the existence of a large amount of dead zone time. Since March 2022, we have upgraded the original motion control system on the XMCD beamline station of the Hefei Light Source and improved the design of PANDABOX. At the same time, we have used the control framework of Bluesky to achieve the first energy fly-scan experiment at the Hefei Light Source. Experimental tests have shown that compared with step scan method, the experiment data quality of the energy fly-scan experiment is better, the scanning efficiency is higher, and the synchronization accuracy is higher. This provides useful reference for the technological development of the control field of the beamline station in the upcoming Hefei Advanced Light Source.
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Design of the HALF Control System

958

G. Liu, L.G. Chen, C. Li, X.K. Sun, K. Xuan, D.D. Zhang
USTC/NSRL, Hefei, Anhui, People’s Republic of China

The Hefei Advanced Light Facility (HALF) is a 2.2-GeV 4th synchrotron radiation light source, which is scheduled to start construction in Hefei, China in 2023. The HALF contains an injector and a 480-m diffraction limited storage ring, and 10 beamlines for phase one. The HALF control system is EPICS based with integrated application and data platforms for the entire facility including accelerator and beamlines. The unified infrastructure and network architecture are designed to build the control system. The infrastructure provides resources for the EPICS development and operation through virtualization technology, and provides resources for the storage and process of experimental data through distributed storage and computing clusters. The network is divided into the control network and the dedicated high-speed data network by physical separation, the control network is subdivided into multiple subnets by VLAN technology. Through estimating the scale of the control system, the 10Gbps control backbone network and the data network that can be expanded to 100Gbps can fully meet the communication requirements of the control system. This paper reports the control system architecture design and the development work of some key technologies in details.

Slides WE1BCO03 [2.739 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-WE1BCO03

About •

Received ※ 02 October 2023 — Revised ※ 09 October 2023 — Accepted ※ 13 October 2023 — Issued ※ 26 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPDP035

Implementation of Synchronization Control Device for Fly-scan at Hefei Light Source

L.G. Chen
USTC/NSRL, Hefei, Anhui, People’s Republic of China

In the field of synchrotron beamline station control, especially in the scanning experimental data acquisition application, the synchronization performance of the scanning execution device and the data acquisition device is one of the key factors related to the quality of the scanning data and the efficiency of the experiment. The traditional experimental beamline station scanning synchronization control generally adopts a software processing mode, which results in a long scanning time, low scanning efficiency, and poor synchronization accuracy due to the existence of a large amount of dead zone time. Since March 2022, we have upgraded the original motion control system on the XMCD beamline station of the Hefei Light Source and improved the design of PANDABOX. At the same time, we have used the control framework of Bluesky to achieve the first energy fly-scan experiment at the Hefei Light Source. Experimental tests have shown that compared with step scan method, the experiment data quality of the energy fly-scan experiment is better, the scanning efficiency is higher, and the synchronization accuracy is higher. This provides useful reference for the technological development of the control field of the beamline station in the upcoming Hefei Advanced Light Source.

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)