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A simple radionuclide-driven single-ion source.

M Montero Díez1, K Twelker, W Fairbank

  • 1Department of Physics, Stanford University, Stanford, California 94305, USA.

The Review of Scientific Instruments
|December 8, 2010
PubMed
Summary
This summary is machine-generated.

This study introduces a novel radioactive decay source for generating single barium ions. Nuclear recoils from Gadolinium-148 alpha decay dislodge barium ions from a barium fluoride layer for tagged ion emission.

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Area of Science:

  • Nuclear Physics
  • Materials Science
  • Ion Source Technology

Background:

  • Developing reliable single-ion sources is crucial for various scientific applications.
  • Existing methods for producing single ions can be complex or lack precise control.
  • Radioactive decay offers a potential pathway for ion generation, but requires careful engineering.

Purpose of the Study:

  • To develop and characterize a novel source for producing single barium ions.
  • To utilize nuclear recoils from radioactive decay for controlled ion emission.
  • To enable simultaneous tagging of nuclear decay events and ion emission.

Main Methods:

  • Fabrication of a source by electroplating Gadolinium-148 onto a silicon alpha-particle detector.
  • Vapor deposition of a Barium Fluoride layer onto the Gadolinium-148 coated detector.
  • Utilizing Samarium-144 recoils from Gadolinium-148 alpha decay to dislodge and emit Barium ions.
  • Simultaneous detection of alpha particles for event tagging.

Main Results:

  • Successfully produced single barium ions via nuclear recoils.
  • Demonstrated simultaneous tagging of nuclear decay and barium ion emission.
  • The source is simple, durable, and adaptable for various environments.
  • The fabrication process is versatile for emitting other chemical species.

Conclusions:

  • The developed source provides a robust and efficient method for generating tagged single barium ions.
  • This technology has potential applications in fields requiring precise control over ion delivery.
  • The adaptable fabrication process opens avenues for creating diverse single-ion sources.