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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Development of a time-resolved soft x-ray spectrometer for laser produced plasma experiments
K V Cone1, J Dunn, M B Schneider
1Lawrence Livermore National Laboratory, Livermore, California 94551, USA. cone2@llnl.gov
The Review of Scientific Instruments
|November 2, 2010
Summary
Researchers used a new spectrometer to measure soft x-ray emissions from laser-produced plasmas. This diagnostic tool offers high resolution for studying hot plasmas and their temporal evolution.
Area of Science:
- Plasma Physics
- X-ray Spectroscopy
- Laser-Induced Plasmas
Background:
- Laser-produced plasmas are crucial for inertial confinement fusion research.
- Understanding soft x-ray emission dynamics is key to characterizing plasma conditions.
Purpose of the Study:
- To characterize soft x-ray emission from laser-produced plasmas using a novel spectrometer.
- To evaluate the temporal evolution of x-ray emission from Mylar and copper targets.
Main Methods:
- Utilized a 2400 lines/mm variable-spaced grating spectrometer coupled with a Kentech x-ray streak camera.
- Measured soft x-ray emission (8-22 Å) from laser-irradiated Mylar and copper foils at 10^15 W/cm^2.
- Achieved a spectral resolving power of ~120 at 19 Å and a time resolution of 31 ps.
Main Results:
- Successfully measured time-resolved soft x-ray spectra from laser-produced plasmas.
- Observed soft x-ray emission temporal profiles consistent with laser heating of the target.
- Demonstrated the diagnostic's capability to track plasma dynamics.
Conclusions:
- The developed spectrometer is a valuable tool for studying high-temperature plasmas.
- The diagnostic provides critical insights into the temporal evolution of soft x-ray emission.
- Results support the use of this method for advanced plasma research.
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