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A compact 300 kV solid-state high-voltage nanosecond generator for dielectric wall accelerator
1Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-106, Mianyang 621900, People's Republic of China.
The Review of Scientific Instruments
|June 1, 2015
Summary
A new compact solid-state pulse generator achieves 300 kV, 10 ns pulses using stacked Blumlein pulse forming lines (PFLs) and GaAs switches for dielectric wall accelerators.
Area of Science:
- Pulsed power technologies
- High-voltage engineering
- Solid-state physics
Background:
- Compact solid-state systems are a key trend in pulsed power.
- Dielectric wall accelerators require high-voltage nanosecond pulses.
- Previous generators faced limitations in size and performance.
Purpose of the Study:
- To design and report on a compact solid-state high-voltage nanosecond pulse generator.
- To achieve specific output parameters: 300 kV amplitude, 10 ns duration, and 3 ns rise-time.
- To validate the performance for dielectric wall accelerator applications.
Main Methods:
- Utilized a stacked design of 15 planar-plate Blumlein pulse forming lines (PFLs).
- Each PFL incorporates solid-state planar transmission lines.
- Employed Gallium Arsenide (GaAs) photoconductive semiconductor switches triggered by laser diodes.
Main Results:
- Successfully designed a compact solid-state pulse generator.
- Achieved an output voltage of 300 kV amplitude.
- Generated pulses with 10 ns Full Width at Half Maximum (FWHM) and 3 ns rise-time.
Conclusions:
- The developed generator meets the demanding requirements for dielectric wall accelerators.
- The stacked Blumlein PFL design with GaAs switches is effective for compact, high-performance pulse generation.
- This work demonstrates a significant advancement in solid-state pulsed power technology.
