An axisymmetric mirror device for studying confinement and instability.

Area of Science:

• Plasma Physics
• Fusion Energy Research
• Magnetic Confinement Fusion

Background:

• Magnetic mirror devices are crucial for plasma confinement.
• Stabilizing plasma in mirror devices presents significant challenges.
• Basic plasma research requires advanced experimental facilities.

Purpose of the Study:

• To introduce the Keda Mirror with AXisymmetricity (KMAX) device.
• To investigate new methods for plasma confinement and stabilization in mirror devices.
• To facilitate basic plasma research.

Main Methods:

• Utilizing a KMAX device with a central cell, side cells, and end chambers.
• Generating plasma with washer guns and controlling density via magnetic field strength.
• Employing ion cyclotron frequency heating and rotating magnetic fields for plasma control.
• Implementing diagnostics including probes, interferometers, spectrometers, diamagnetic loops, and bolometers.

Main Results:

• The KMAX device enables plasma generation and merging in the central cell.
• Plasma density can be adjusted from 10^17 to 10^19 m^-3.
• Ion heating is achieved using 100 kW transmitters.
• Magnetic geometry and rotating fields are used for confinement and instability suppression.

Conclusions:

• The KMAX device is a versatile platform for studying plasma confinement and stability.
• The experimental setup allows for controlled manipulation of plasma parameters.
• The findings contribute to the broader field of magnetic mirror research and fusion energy development.