Development of a Marx-coupled trigger generator with high voltages and low time delay

Area of Science:

• High-voltage engineering
• Pulsed power systems
• Plasma physics

Background:

• Marx generators are crucial for pulsed power applications.
• Precise triggering is essential for synchronizing high-energy events.
• Existing trigger generators face challenges in achieving low time delay and jitter.

Purpose of the Study:

• To develop a high-voltage, low time-delay trigger generator.
• To optimize the design and performance of the trigger generator.
• To characterize the operational parameters of the developed trigger generator.

Main Methods:

• Coupling a Marx generator from the "JianGuang-I" facility.
• Detailed analysis of working principles and key design issues.
• Structural design and optimization of the trigger generator.
• Establishment of a test stand based on the "JianGuang-I" Marx generator.
• Conducting experimental tests to evaluate performance.

Main Results:

• The trigger generator's output voltage is continuously adjustable from 58 kV to 384 kV.
• The time delay is approximately 200 ns, with a peak time of less than 50 ns.
• Time-delay jitter decreases with increasing peak voltage, falling below 7.7 ns at trigger voltages above 250 kV.

Conclusions:

• The developed trigger generator meets the requirements for high-voltage and low time-delay applications.
• The optimized design ensures stable and precise triggering performance.
• The experimental results validate the effectiveness of the trigger generator for pulsed power systems.