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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
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Published on: November 3, 2016

A compact and continuously driven supersonic plasma and neutral source.

T Asai1, H Itagaki, H Numasawa

  • 1Department of Physics, College of Science and Technology, Nihon University, Tokyo 101-8308, Japan. asai.tomohiko@nihon-u.ac.jp

The Review of Scientific Instruments
|November 2, 2010
PubMed
Summary
This summary is machine-generated.

A new magnetized coaxial plasma gun (MCPG) offers deep neutral flux penetration for advanced diagnostics. This compact, high-frequency plasma source achieves helium-plasmoid velocities up to 20 km/s.

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Area of Science:

  • Plasma Physics
  • Accelerator Technology
  • Materials Science

Background:

  • Diagnostics requiring deep neutral flux penetration are crucial in various scientific fields.
  • Existing plasma sources may lack the necessary penetration depth or repetitive capabilities.
  • Magnetized coaxial plasma guns (MCPGs) offer a potential solution for generating high-flux plasma.

Purpose of the Study:

  • To develop a compact and repetitively driven plasma source for diagnostics.
  • To achieve deep neutral flux penetration using a magnetized coaxial plasma gun.
  • To characterize the performance of the developed plasma source.

Main Methods:

  • Development of a compact magnetized coaxial plasma gun (MCPG) with a DN16 ConFlat connection.
  • Integration of an insulated gate bipolar transistor (IGBT) inverter power unit capable of high-frequency switching.
  • Utilizing multiple short-duration discharge pulses to maximize plasmoid acceleration efficiency.

Main Results:

  • A compact and repetitively driven plasma source was successfully developed.
  • The system operates with an IGBT inverter power unit, switching up to 10 kV and 600 A.
  • A maximum repetitive frequency of 10 kHz was achieved.
  • Helium-plasmoids reached velocities in the range of 20 km/s at 10 kHz operation.

Conclusions:

  • The developed MCPG is a viable solution for diagnostics requiring deep neutral flux penetration.
  • The compact and high-frequency plasma source demonstrates efficient plasmoid acceleration.
  • This technology enables advanced plasma-based diagnostics and research applications.