Work

Design and implementation of the EAST central safety interlock system based on SIS devices

Year: 2026

Type: article

Abstract: The CSIS serves as the primary line of defense for ensuring the safety of critical equipment and personnel in the EAST fusion device. In this study, the reconstruction and optimization of the CSIS are designed and implemented utilizing a SIS device and the EPICS platform. At the hardware level, a TMR architecture coupled with a 2oo3D voting mechanism is employed to guarantee high system safety and reliability. At the software level, the EPICS toolchain is utilized to implement supervisory monitoring, data archiving, and historical record retrieval functionalities. Test results demonstrate that the system achieves a response time of 30 ms and meets SIL3 requirements. This verifies the feasibility of deploying an SIS for central safety interlocks in nuclear fusion applications, providing a technical foundation and reference for the design of a unified CCS platform. The system has successfully passed comprehensive testing, with all performance metrics meeting design requirements, and is scheduled for deployment in the 2026 spring experimental campaign.

Source: Fusion Engineering and Design

DOI: 10.1016/j.fusengdes.2026.115895

Authors: Tengfei Tian, Zuchao Zhang, Zihan Huang, Jie Zhang, Guoshun Xu

Institutions: Anhui University, Chinese Academy of Sciences, Hefei Institutes of Physical Science, Institute of Plasma Physics, Anhui University of Science and Technology

Language: English

Topic: Particle accelerators and beam dynamics

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $2,810