The x-ray emission, ablation pressure, and preheating for foils irradiated at 0.26 μm wavelength
- 1 November 1985
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 28 (11), 3393-3396
- https://doi.org/10.1063/1.865339
Abstract
The x‐ray emission, ablation pressure, and preheating for foils irradiated with a 0.26 μm laser at intensities ∼1015 W cm−2 are studied. The foils are Al with various thicknesses, coated or uncoated with CH or Au. The x‐ray emission and conversion efficiency are obtained with a multichannel x‐ray diode spectrometer, the ablation pressures are deduced from shock transit times, and the rear temperatures are inferred from x‐ray pyrometry. For thin foils (≪12 μm), the rear temperatures can be predicted reasonably well with the use of the front x‐ray spectra. For thick foils shock preheating is dominant.Keywords
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