Development of FPGA-based multi-sensor excitation low voltage (MSELV) chassis at Jefferson Lab

Area of Science:

• High-energy physics instrumentation
• Superconducting magnet technology
• Accelerator control systems

Background:

• The 12 GeV accelerator upgrade at Jefferson Lab (JLab) requires advanced monitoring and control for superconducting magnets in Hall B.
• Two specific superconducting magnets, a torus and a solenoid, necessitate extensive instrumentation for safe and effective operation.

Purpose of the Study:

• To design and develop a generic, low-voltage, multi-sensor excitation chassis.
• To accommodate diverse sensor types for monitoring and control of both torus and solenoid magnets.
• To reduce the complexity and enhance the reliability of the magnet instrumentation systems.

Main Methods:

• Application of JLab's risk mitigation process, including Failure Modes and Effects Analysis (FMEA).
• Development of a unified chassis design applicable to multiple superconducting magnet systems.
• Selection of appropriate sensors based on risk assessment and functional requirements.

Main Results:

• Successful design and development of a generic multi-sensor excitation chassis.
• Deployment and successful performance of the chassis in experimental Hall B since July 2016.
• Demonstrated ability to accommodate extensive instrumentation for superconducting magnets.

Conclusions:

• The developed generic chassis effectively meets the monitoring and control requirements for superconducting magnets in Hall B.
• The risk mitigation process ensured robust sensor selection and system design.
• The deployed system provides reliable performance for the 12 GeV accelerator upgrade.