Time-resolved K<sub>α</sub> spectroscopy measurements of hot-electron equilibration dynamics in thin-foil solid targets [electronic resource] : Collisional and collective effects
- Washington, D.C. : United States. Dept. of Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 224,001 : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Time-resolved Kα spectroscopy measurements from high-intensity laser interactions with thin-foil solid targets are reviewed. Thin Cu foils were irradiated with 1- to 10-J, 1-ps pulses at focused intensities from 1018 to 1019 W/cm2. The experimental data show Kα-emission pulse widths from 3 to 6 ps, increasing with laser intensity. The time-resolved Kα-emission data are compared to a hot-electron transport and Kα-production model that includes collisional electron-energy coupling, resistive heating, and electromagnetic field effects. The experimental data show good agreement with the model when a reduced ponderomotive scaling is used to describe the initial mean hot-electron energy over the relevant intensity range.
- Report Numbers:
- E 1.99:1222947
- Other Subject(s):
- Published through SciTech Connect.
Journal of Physics. B, Atomic, Molecular and Optical Physics 48 22 ISSN 0953-4075 AM
Nilson, P.; Solodov, A.; Davies, J.; Theobald, W.; Mileham, C.; Stoeckl, C.; Begishev, I.; Zuegel, J.; Froula, D.; Betti, R.; Meyerhofer, D.
Univ. of Rochester, Rochester, NY (United States)
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