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Related Experiment Video

Updated: Oct 26, 2025

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

Published on: August 6, 2018

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Time-resolved ion energy measurements using a retarding potential analyzer.

Matthew Baird1, Ron McGee-Sinclair1, Kristina Lemmer1

  • 1Mechanical and Aerospace Engineering Department, Western Michigan University, Kalamazoo, Michigan 49008, USA.

The Review of Scientific Instruments
|August 3, 2021
PubMed
Summary
This summary is machine-generated.

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Researchers developed new methods to reconstruct ion energy distribution functions (IEDFs) in flowing plasma. These techniques accurately capture time-varying plasma energy, crucial for understanding plasma dynamics.

Area of Science:

  • Plasma Physics
  • Applied Physics

Background:

  • Flowing laboratory plasmas are crucial in various applications.
  • Understanding time-varying ion energy distribution functions (IEDFs) is essential for plasma characterization.
  • Existing methods for IEDF measurement may lack temporal resolution.

Purpose of the Study:

  • To develop and validate novel methods for temporally resolved IEDF reconstruction in flowing laboratory plasma.
  • To assess the efficacy of two distinct data fusion techniques for IEDF analysis.

Main Methods:

  • Utilized a retarding potential energy analyzer with high-speed, low-noise instrumentation.
  • Generated time-varying plasma energy using a commercial gridded ion source modulated at 1 and 20 kHz.
  • Reconstructed IEDFs using two data fusion techniques: empirical transfer function and shadow manifold interpolation.

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Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
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Related Experiment Videos

Last Updated: Oct 26, 2025

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

7.0K
Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

8.9K
Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
10:03

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

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Main Results:

  • Successfully reconstructed IEDFs for plasmas with time-varying ion energy.
  • Demonstrated the capability of the developed methods to capture fast plasma dynamics.
  • Achieved excellent agreement between the reconstructed IEDFs from both analysis methods.

Conclusions:

  • The developed data fusion techniques provide accurate temporal resolution for IEDFs in flowing plasmas.
  • These methods offer a significant advancement in characterizing dynamic plasma behavior.
  • The study validates the use of empirical transfer function and shadow manifold interpolation for IEDF reconstruction.