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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Time-resolved x-ray transmission grating spectrometer for studying laser-produced plasmas
N M Ceglio1, R L Kauffman, A M Hawryluk
1University of California, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550, USA.
Applied Optics
|January 15, 1983
Summary
A novel time-resolved x-ray spectrometer combines a transmission grating and streak camera for high-sensitivity plasma diagnostics. This instrument provides 20-psec temporal resolution for continuous x-ray spectra, aiding laser-plasma experiment analysis.
Area of Science:
- Plasma Physics
- Spectroscopy
- X-ray Optics
Background:
- Investigating laser-generated plasmas requires advanced diagnostic tools for time-resolved spectral analysis.
- Existing spectroscopic techniques have limitations in capturing continuous x-ray spectra with high temporal resolution.
Purpose of the Study:
- To develop and characterize a new time-resolved x-ray spectrometer.
- To enable high-sensitivity, time-resolved measurements of continuous x-ray spectra from laser-produced plasmas.
Main Methods:
- Coupling a free-standing x-ray transmission grating to a soft x-ray streak camera.
- Utilizing the spectrometer to measure continuous x-ray spectra over a broad energy range (0.1-5 keV).
- Achieving 20-picosecond temporal resolution and moderate spectral resolution (Δλ ≥ 1 Å).
Main Results:
- Demonstrated the capability to measure continuous x-ray spectra with 20-psec temporal resolution.
- Successfully applied the spectrometer to laser-plasma experiments, recording temporal variations.
- Obtained the first measurements of continuous low-energy x-ray spectra from laser-irradiated disk targets.
Conclusions:
- The developed time-resolved x-ray spectrometer offers high sensitivity and large information capacity.
- This instrument complements existing time-resolved spectroscopic techniques for laser-plasma research.
- The spectrometer is well-suited for detailed investigation of transient plasma phenomena.
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