Development of very small-diameter, inductively coupled magnetized plasma device

Area of Science:

• Plasma Physics
• Applied Physics
• Engineering

Background:

• Miniaturization of plasma devices is crucial for applications like industrial processing and electric propulsion.
• High-density plasmas are essential for efficient operation in these fields.
• Existing helicon plasma devices often lack the required compactness for certain applications.

Purpose of the Study:

• To develop a miniaturized helicon plasma device.
• To investigate the generation of high-density plasmas in small-diameter devices.
• To assess the feasibility of using such devices for industrial and electric propulsion applications.

Main Methods:

• Development of a small helicon plasma device utilizing quartz tubes with diameters of 10 and 20 mm.
• Application of radio frequency power (approximately 1200 W and 700 W, respectively).
• Operation within a magnetic field strength of less than 1 kG.

Main Results:

• Successful generation of high-density plasmas with densities reaching ~10^19 m^-3.
• Demonstration of plasma generation in very small diameter quartz tubes.
• Achieved high plasma densities with relatively low magnetic field strengths.

Conclusions:

• The developed small helicon device is capable of producing high-density plasmas.
• Miniaturized helicon plasma technology is viable for industrial and electric propulsion applications.
• Further research can explore optimization for enhanced performance and broader application.