Single-stage LTD Cavity

Peak power 82 GW

A full-circuit numerical model based on the Bergeron algorithm is established, enabling self-consistent simulation from discharge branches to the cavity and accurate prediction of output characteristics.

Jiang, Hongyu · Jiang, Xiaofeng · Sun, Fengju · Cheng, Lou · Wei, Hao · Aici, Qiu

Gaodianya Jishu/High Voltage Engineering 2026

Specifications

Peak output power

{'zh': '82', 'en': '82'} GW

Resistive load energy efficiency

{'zh': '80', 'en': '80'} %

Energy loss ratio due to spark channel resistance

{'zh': '5.7', 'en': '5.7'} %

Advantages

Accurate output prediction

By incorporating the dynamic spark channel resistance, electromagnetic coupling, and triggering closed time, the model accurately reproduces experimental output characteristics.

Self-consistent full-circuit simulation

The model achieves self-consistent simulation from discharge branches to the entire cavity without idealized assumptions.

Reveals energy loss mechanism

The model quantifies the energy loss ratio due to spark channel resistance as 5.7%, providing guidance for optimizing switches and cavity structure.

Applications

• Pulsed Power Systems：Predict pulse formation and transmission to optimize compact driver design.
• High-Power Microwave Sources：Deliver high-power electrical pulses to drive microwave sources for intense electromagnetic radiation.
• Accelerator Drivers：Serve as a pulsed power module for accelerators, with predictable output and series stacking for voltage multiplication.