X-ray absorption spectroscopy study of energy transport in foil targets heated by petawatt laser pulses
X-ray absorption spectroscopy is proposed as a method for studying the heating of solid-density matter excited by secondary X-ray radiation from a relativistic laser-produced plasma. The method was developed and applied to experiments involving thin silicon foils irradiated by 0.5–1.5 ps duration ultrahigh contrast laser pulses at intensities between 0.5×1020 and 2.5×1020 W/cm2. The electron temperature of the material at the rear side of the target is estimated to be in the range of 140–300 eV. The diagnostic approach enables the study of warm dense matter states with low self-emissivity.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC5206NA25396; AC04-94AL85000
- OSTI ID:
- 1423695
- Alternate ID(s):
- OSTI ID: 1477325
- Report Number(s):
- SAND-2018-10705J
- Journal Information:
- Photonics Research, Journal Name: Photonics Research Vol. 6 Journal Issue: 4; ISSN 2327-9125
- Publisher:
- Optical Society of AmericaCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 14 works
Citation information provided by
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