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The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
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Gasdynamic electron cyclotron ion sources: Basic physics, applications, and diagnostic techniques.

V A Skalyga1, I V Izotov1, S V Golubev1

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Gasdynamic electron cyclotron resonance (ECR) ion sources achieve high ionization efficiency through dense plasma. This unique plasma source produces high-quality ion beams for accelerators and neutron sources.

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Area of Science:

  • Plasma Physics
  • Ion Source Technology

Background:

  • Gasdynamic electron cyclotron resonance (ECR) ion sources utilize high plasma density for ionization efficiency.
  • Plasma confinement in these sources is governed by gasdynamic outflow due to high particle collision rates.
  • Electron heating is highly efficient, leading to energies exceeding those in other plasma types.

Purpose of the Study:

  • To discuss the physical aspects of gasdynamic ECR plasma.
  • To explore suitable diagnostic techniques for this plasma.
  • To outline application possibilities and future prospects.

Main Methods:

  • Analysis of gasdynamic plasma outflow and resonant electron heating.
  • Application of diagnostic techniques for high-density plasmas, including numerical simulations.
  • Spectroscopic measurements using Stark broadening of hydrogen lines.

Main Results:

  • Gasdynamic ECR plasma is a unique source of low to medium charged ions with high current and beam quality.
  • The plasma parameters enable the use of specialized diagnostic methods.
  • High plasma density allows for non-invasive diagnostics like visible spectroscopy.

Conclusions:

  • Gasdynamic ECR ion sources offer significant potential for applications such as high-current proton injectors.
  • Advanced diagnostic techniques, including spectroscopy and simulations, are applicable and effective.
  • The unique properties of this plasma source present promising future applications.