Radial current high power dummy load for characterizing the high power laser triggered transformer-type accelerator

Area of Science:

• Physics
• Electrical Engineering
• Pulsed Power Technology

Background:

• Characterizing high-power pulsed systems requires specialized dummy loads.
• Traditional axial-current loads present limitations in inductance and response time.
• Laser-triggered accelerators demand loads with specific resistive and optical properties.

Purpose of the Study:

• To design and characterize a novel radial-current aqueous resistive solution load for a laser-triggered transformer-type accelerator.
• To evaluate the inductance and capacitance of the new load design.
• To experimentally validate the performance of the radial-current load in a high-power pulse-forming line.

Main Methods:

• Development of a radial-current aqueous resistive solution load.
• Theoretical and numerical calculations for load inductance and capacitance.
• Equivalent circuit analysis using PSPICE simulation.
• Experimental testing with a high-power spiral pulse-forming line.

Main Results:

• The radial-current load exhibits significantly smaller inductance and faster response compared to axial loads.
• Theoretical calculations and PSPICE simulations showed good agreement.
• Experimental application yielded a quasi-square pulse voltage output.
• The load design successfully accommodated accelerator resistance requirements and allowed optical laser access.

Conclusions:

• The radial-current aqueous resistive solution load is a viable and effective component for laser-triggered transformer-type accelerators.
• This load design offers improved performance characteristics for pulsed power applications.
• The study validates the theoretical and simulation models through experimental results.