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Related Experiment Video

Updated: Jun 18, 2026

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
08:22

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Intense SrF radical beam for molecular cooling experiments.

Ming-Feng Tu1, Jia-Jung Ho, Chih-Chiang Hsieh

  • 1Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.

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

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We created a continuous strontium fluoride (SrF) radical beam for helium buffer gas cooling. Higher molecular flux is achievable by increasing the oven temperature for enhanced cooling applications.

Area of Science:

  • Atomic and Molecular Physics
  • Laser Spectroscopy
  • Chemical Physics

Background:

  • Helium buffer gas cooling is a crucial technique for preparing cold molecules.
  • Strontium fluoride (SrF) radicals are promising candidates for precision measurements and quantum information applications.
  • Efficient generation of molecular beams is essential for loading cold molecule experiments.

Purpose of the Study:

  • To develop a continuous strontium fluoride (SrF) radical beam.
  • To characterize the properties of the SrF beam for buffer gas cooling applications.
  • To investigate methods for enhancing molecular flux.

Main Methods:

  • High-temperature chemical reaction of strontium fluoride (SrF2) precursor with boron in a graphite oven.
  • Generation of a continuous SrF radical beam.

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Last Updated: Jun 18, 2026

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
08:22

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation

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  • Characterization of beam properties using laser-induced fluorescence spectroscopy.

    • Main Results:

    • A continuous SrF radical beam was successfully developed.
    • A molecular flux of up to 2.1x10^15 sr^-1 s^-1 was achieved at the detection region for all rotational states.
    • The molecular flux showed a dependence on oven temperature, indicating potential for higher flux.

    Conclusions:

    • The developed SrF radical beam is suitable for loading helium buffer gas cooling experiments.
    • Increasing the oven temperature is a viable strategy for achieving higher molecular flux.
    • Further optimization of the generation process could lead to even greater flux for advanced applications.