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A vacuum spark ion source: High charge state metal ion beams
G Yu Yushkov1, A G Nikolaev1, E M Oks1
1High Current Electronics Institute, Siberian Branch of the Russian Academy of Science, Tomsk 634055, Russia.
The Review of Scientific Instruments
|March 3, 2016
Summary
This study introduces a vacuum spark ion source to achieve higher metal ion charge states, enabling more energetic ion beams. This technique successfully produced bismuth ions with charge states up to 15+.
Area of Science:
- Plasma physics
- Ion beam generation
- Materials science
Background:
- High ion charge states are crucial for increasing ion beam energy in ion beam physics.
- Existing vacuum arc ion sources have limitations in achieving high charge states for metal ions.
Purpose of the Study:
- To investigate the use of a vacuum spark ion source for generating high charge state metal ion beams.
- To demonstrate the capability of producing high current ion beams with elevated charge states.
Main Methods:
- Replacing vacuum arc ion sources with vacuum spark ion sources.
- Utilizing spark discharges with pulse durations under 10 μs and currents up to 10 kA.
- Extracting generated ion beams for analysis.
Main Results:
- Achieved high charge states for heavy ions, specifically bismuth ions up to 15+.
- Demonstrated a mean ion charge state exceeding 10+.
- Produced ion beams with currents of several amperes at a pulse repetition rate of up to 5 pps.
Conclusions:
- Vacuum spark ion sources are effective for producing high charge state metal ion beams.
- This method offers a practical approach to enhance ion beam energy for various applications.
- The developed physics and techniques are suitable for advanced ion beam applications.
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