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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Note: An inexpensive square waveform ion funnel driver.

Nathan M Hoffman1, Bojana Opačić1, Peter T A Reilly1

  • 1Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA.

The Review of Scientific Instruments
|February 3, 2017
PubMed
Summary
This summary is machine-generated.

A new, inexpensive frequency-variable square waveform generator (WFG) was developed for ion funnels. This cost-effective WFG uses basic components and offers comparable performance to commercial options.

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Area of Science:

  • Physics
  • Electrical Engineering
  • Analytical Chemistry

Background:

  • Ion funnels are crucial components in mass spectrometry and other analytical techniques.
  • Existing waveform generators for ion funnels can be expensive.
  • There is a need for cost-effective and adaptable waveform generation solutions.

Purpose of the Study:

  • To develop an inexpensive, frequency-variable square waveform generator (WFG).
  • To create a WFG compatible with existing sinusoidal waveform-driven ion funnels.
  • To demonstrate significant cost savings compared to commercial alternatives.

Main Methods:

  • The WFG was constructed using low-voltage DC power supplies and discrete electronic components.
  • Components were integrated onto printed circuit boards for a compact design.
  • The WFG's performance was tested with a 1 nF ion funnel.

Main Results:

  • The developed WFG operates at variable frequencies, demonstrated at 1 MHz.
  • It successfully switches 48 Vp-p, suitable for ion funnel applications.
  • The construction costs are considerably lower than commercial waveform generators.

Conclusions:

  • The developed WFG provides a cost-effective solution for ion funnel applications.
  • It achieves performance comparable to more expensive commercial systems.
  • This innovation makes advanced waveform generation more accessible for research.