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Updated: Sep 25, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

One-kilojoule pulsed-power generator for laboratory space sciences.

Po-Yu Chang¹, Yen-Cheng Lin¹, Ming-Hsiang Kuo¹

¹Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan City 70101, Taiwan.

The Review of Scientific Instruments

|April 30, 2022

Summary

This summary is machine-generated.

A new compact, low-cost pulsed-power facility was assembled for plasma studies. This system achieved 135 kA peak current, enabling plasma jet speeds up to 170 km/s.

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Area of Science:

Plasma Physics
Pulsed Power Engineering
High Energy Density Physics

Background:

Pulsed-power systems are crucial for generating high-energy-density plasmas.
Compact and cost-effective facilities are needed for advanced plasma research.
Previous studies on imploding wire arrays lacked detailed diagnostics for jet dynamics.

Purpose of the Study:

To report the assembly of a novel compact, low-cost pulsed-power facility.
To characterize the performance of the facility for plasma studies.
To investigate the dynamics of imploding conical-wire arrays.

Main Methods:

Assembly of a two-module pulsed-power system with minimized impedance.
Utilized stored energy of 1 kJ, peak current of 135 kA, and a 1592 ns quarter-period.
Employed time-integrated (visible) and time-resolved laser imaging for diagnostics.

Main Results:

The facility was successfully assembled and characterized.
Imploding conical-wire arrays generated plasma jets with speeds up to 170 km/s.
The system design facilitates improved access to test samples.

Conclusions:

The developed pulsed-power facility is a viable and cost-effective tool for plasma research.
The achieved plasma jet speeds are significant for applications in fusion and space environments.
Future research will focus on high-energy-density plasmas relevant to space, fusion, and spectroscopy.