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Updated: Mar 20, 2026
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An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
Published on: November 3, 2016
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Note: Arc discharge plasma source with plane segmented LaB6 cathode.
T D Akhmetov1, V I Davydenko1, A A Ivanov1
1Budker Institute of Nuclear Physics SB RAS, 11 Lavrentieva Prospect, 630090 Novosibirsk, Russia.
The Review of Scientific Instruments
|June 3, 2016
Summary
This study introduces a new lanthanum hexaboride (LaB6) cathode for plasma generation. The device utilizes a magnetic coil to control discharge regimes in a linear plasma device.
Area of Science:
- Plasma physics
- Materials science
- Engineering
Background:
- Development of efficient plasma sources is crucial for various applications.
- Lanthanum hexaboride (LaB6) is a known material for electron emission.
- Linear plasma devices offer unique advantages in plasma confinement and control.
Purpose of the Study:
- To describe a novel plane cathode design using lanthanum hexaboride (LaB6) segments.
- To investigate its application in arc discharge plasma production within a new linear plasma device.
- To explore the control of plasma discharge regimes using a variable magnetic field.
Main Methods:
- Fabrication of a 6 cm diameter circular cathode from close-packed hexagonal LaB6 segments.
- Heating the cathode via radiation from a graphite foil spiral.
- Integration of the cathode with a hollow copper anode in a linear plasma device.
- Utilizing a separately powered coil around the anode to adjust magnetic field strength and geometry.
Main Results:
- Successful production of arc discharge plasma using the LaB6 cathode.
- Demonstration of control over discharge parameters by adjusting the magnetic field.
- Realization of different discharge regimes within the linear plasma device.
Conclusions:
- The described LaB6 cathode design is effective for plasma generation.
- The magnetic coil provides a viable method for controlling plasma discharge characteristics.
- This setup represents a promising advancement in linear plasma device technology.
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