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Direct high-resolution ion beam-profile imaging using a position-sensitive Faraday cup array.

Lauri Panitzsch1, Michael Stalder, Robert F Wimmer-Schweingruber

  • 1Institute for Experimental and Applied Physics, University of Kiel, Kiel 24118 Germany. panitzsch@physik.uni-kiel.de

The Review of Scientific Instruments
|December 2, 2009
PubMed
Summary
This summary is machine-generated.

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A new method using small Faraday cups precisely images ion beam profiles for calibrating space-based solar wind instruments. This technique ensures accurate measurements of particle energies up to 200 keV/nuc.

Area of Science:

  • Space physics and instrumentation
  • Plasma physics
  • Particle accelerator technology

Background:

  • Accurate characterization of ion beams is crucial for scientific instruments.
  • Space-based missions require precise calibration for solar wind and suprathermal particle measurements.
  • Existing methods may lack the resolution or accuracy needed for specific energy ranges.

Purpose of the Study:

  • To develop and describe a novel method for imaging ion beam profiles.
  • To calibrate instruments for space-based measurements of solar wind and suprathermal particles.
  • To address the challenge of high thermal loads in ion beam characterization.

Main Methods:

  • Development of a new ion beam imaging technique utilizing an array of micro-Faraday cups (0.3 mm diameter).

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  • Experimental setup designed to handle significant thermal loads (approx. 40 W beam power).
  • Focus on achieving accurate beam profiles and intensity measurements.

    • Main Results:

    • Demonstration of a method for precise ion beam profile imaging.
    • Successful characterization of ion beams in the energy range from below 1 keV/nuc to above 200 keV/nuc.
    • Validation of the experimental setup's ability to manage high thermal loads.

    Conclusions:

    • The developed micro-Faraday cup array offers a viable solution for accurate ion beam profile imaging.
    • This method is suitable for calibrating instruments used in space-based particle measurements.
    • The technique effectively addresses challenges related to high beam power and thermal management.