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Low divergence cold-wall oven for loading ion traps.

Anand Prakash1, Akhil Ayyadevara1, E Krishnakumar1

  • 1Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080, India.

The Review of Scientific Instruments
|March 13, 2024
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Summary
This summary is machine-generated.

We developed a simple, low-power cold-wall oven for producing a collimated atomic beam of calcium ions. This compact device enables efficient loading of miniature ion traps, crucial for atomic physics experiments.

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Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Quantum Information Science

Background:

  • Miniature ion traps require precise loading of atomic species.
  • Generating collimated atomic beams is essential for efficient trap loading.

Purpose of the Study:

  • To present a novel, compact cold-wall oven design for producing a collimated atomic beam.
  • To characterize the performance of the cold-wall oven for loading calcium ions into ion traps.

Main Methods:

  • A metal-loaded capillary is heated by electrical current to generate an atomic beam.
  • Doppler-sensitive, resonant fluorescence measurements are used for characterization.
  • The oven assembly is mounted on a CF16 feedthrough for integration.

Main Results:

  • A low-divergence (14 mrad) atomic beam of calcium is produced.
  • Atom emission begins within ~70 s of activation with <10 W power consumption.
  • Measured flow rate is 1.5 ± 0.2 × 10^9 atoms/s at 702 ± 7 K.

Conclusions:

  • The compact cold-wall oven is a simple and effective solution for producing collimated atomic beams.
  • The design is suitable for loading miniature ion traps with calcium ions.
  • The technology is adaptable for other atomic species, broadening its applicability.