Record Details

Title:
Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy
Affiliation(s):
EuXFEL staff, Other
Author group:
Instrument HED
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Topic:
Scientific area:
Abstract:
Warm dense conditions in titanium foils irradiated with intense femtosecond laser pulses are diagnosed using an x-ray imaging spectroscopy technique. The line shapes of radially resolved titanium Kα spectra are measured with a toroidally bent GaAs crystal and an x-ray charge-coupled device. Measured spectra are compared with the K-shell emissions modeled using an atomic kinetics – spectroscopy simulation code. Kα line shapes are strongly affected by warm (5-40 eV) bulk electron temperatures and imply multiple temperature distributions in the targets. The spatial distribution of temperature is dependent on the target thickness, and a thin target shows an advantage to generate uniform warm dense conditions in a large area.
Imprint:
2018
Journal Information:
Optics Express, 26 (5), 6294-6301 (2018)
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Language(s):
English


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 Record created 2018-03-05, last modified 2019-01-30

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