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Related Experiment Video

Updated: Jul 6, 2026

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

Diode-laser tomography for arcjet plume reconstruction.

F Y Zhang, T Fujiwara, K Komurasaki

    Applied Optics
    |March 22, 2008
    PubMed
    Summary

    Diode-laser absorption tomography simultaneously measures temperature and atomic density in arcjet plumes. Higher mass-flow rates and discharge currents generally increase these parameters, aiding plasma diagnostics.

    Area of Science:

    • Plasma physics
    • Optical diagnostics
    • Fluid dynamics

    Background:

    • Arcjets are crucial for various applications, but their exhaust plume characteristics require precise measurement.
    • Understanding the spatial distribution of temperature and atomic number density is vital for optimizing arcjet performance.

    Purpose of the Study:

    • To develop and demonstrate diode-laser absorption tomography for simultaneous measurement of temperature and atomic number density in an arcjet exhaust plume.
    • To investigate the influence of operational parameters (mass-flow rate, discharge current) on arcjet plume properties.

    Main Methods:

    • Utilized diode-laser absorption tomography to reconstruct the absorption coefficient field of an argon arcjet exhaust plume.
    • Performed parameter measurements by systematically varying mass-flow rates and discharge currents.

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    Published on: February 14, 2014

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
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    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

    Published on: August 1, 2017

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    Last Updated: Jul 6, 2026

    Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
    09:18

    Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

    Published on: December 14, 2017

    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
    09:40

    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

    Published on: February 14, 2014

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
    07:17

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

    Published on: August 1, 2017

    Main Results:

    • Successfully derived simultaneous spatial temperature and atomic number density distributions.
    • Observed that maximum temperature and atomic number density increase with mass-flow rate and discharge current.
    • Noted that the trend for increase is not always consistent for a specific input power at fixed mass-flow rate.

    Conclusions:

    • Diode-laser absorption tomography is an effective technique for detailed arcjet plume analysis.
    • Operational parameters significantly influence arcjet plume temperature and density, providing insights for control and optimization.