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Related Experiment Video

Updated: May 2, 2026

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
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Operational test of micro-oven for 48Ca beam.

K Ozeki1, T Kageyama1, M Kidera1

  • 1RIKEN Nishina Center, Wako, Saitama, 351-0198, Japan.

The Review of Scientific Instruments
|March 6, 2014
PubMed
Summary

Researchers tested a micro-oven to produce a high-intensity calcium-48 beam for ion sources. They successfully generated a stable calcium beam, reducing material use and enhancing intensity.

Area of Science:

  • Nuclear Physics
  • Accelerator Science
  • Materials Science

Background:

  • High-intensity and stable ion beams are crucial for nuclear physics research and applications.
  • Electron Cyclotron Resonance (ECR) ion sources require efficient methods for producing metallic ion beams.
  • Calcium-48 (Ca-48) is a key isotope for various nuclear reaction studies.

Purpose of the Study:

  • To test a micro-oven system for producing a high-intensity and stable calcium-48 (Ca-48) beam.
  • To optimize the production of metallic calcium for use in an RIKEN 18-GHz ECR ion source.
  • To investigate methods for reducing material consumption and enhancing beam intensity.

Main Methods:

  • Utilized a micro-oven containing a mixture of calcium oxide (CaO) and aluminum (Al) powders.

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  • Employed a reductive reaction by heating the mixture to produce metallic calcium.
  • Implemented a 'hot liner' to reduce material consumption rate.
  • Applied a negative voltage bias to the micro-oven to enhance beam intensity.

    • Main Results:

    • Successfully confirmed the production of a metallic calcium beam.
    • Achieved a reduction in the material consumption rate through the use of a 'hot liner'.
    • Enhanced the beam intensity by applying a negative voltage bias to the micro-oven, mimicking a 'biased disk' effect.

    Conclusions:

    • The tested micro-oven system is effective for producing a calcium beam for ECR ion sources.
    • The 'hot liner' and negative voltage bias techniques offer practical improvements for beam production efficiency and intensity.
    • These advancements contribute to supplying high-intensity and stable Ca-48 beams for scientific research.