Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy
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. Finally, 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.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1423403
- Alternate Identifier(s):
- OSTI ID: 1437353
- Grant/Contract Number:
- AC02-76SF00515; IBS-R012-D1
- Resource Type:
- Published Article
- Journal Name:
- Optics Express
- Additional Journal Information:
- Journal Name: Optics Express Journal Volume: 26 Journal Issue: 5; Journal ID: ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 47 OTHER INSTRUMENTATION
Citation Formats
Bae, L. J., Zastrau, U., Chung, H. -K., Bernstein, A. C., Cho, M. S., Dyer, G. M., Galtier, E., He, Z. -H., Heimann, P. A., Kang, G. B., Kim, M., Kim, Y. H., Lee, H. J., Lee, J. W., Nagler, B., Thomas, A. G. R., and Cho, B. I. Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy. United States: N. p., 2018.
Web. doi:10.1364/OE.26.006294.
Bae, L. J., Zastrau, U., Chung, H. -K., Bernstein, A. C., Cho, M. S., Dyer, G. M., Galtier, E., He, Z. -H., Heimann, P. A., Kang, G. B., Kim, M., Kim, Y. H., Lee, H. J., Lee, J. W., Nagler, B., Thomas, A. G. R., & Cho, B. I. Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy. United States. https://doi.org/10.1364/OE.26.006294
Bae, L. J., Zastrau, U., Chung, H. -K., Bernstein, A. C., Cho, M. S., Dyer, G. M., Galtier, E., He, Z. -H., Heimann, P. A., Kang, G. B., Kim, M., Kim, Y. H., Lee, H. J., Lee, J. W., Nagler, B., Thomas, A. G. R., and Cho, B. I. Thu .
"Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy". United States. https://doi.org/10.1364/OE.26.006294.
@article{osti_1423403,
title = {Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Kα imaging spectroscopy},
author = {Bae, L. J. and Zastrau, U. and Chung, H. -K. and Bernstein, A. C. and Cho, M. S. and Dyer, G. M. and Galtier, E. and He, Z. -H. and Heimann, P. A. and Kang, G. B. and Kim, M. and Kim, Y. H. and Lee, H. J. and Lee, J. W. and Nagler, B. and Thomas, A. G. R. and Cho, B. I.},
abstractNote = {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. Finally, 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.},
doi = {10.1364/OE.26.006294},
journal = {Optics Express},
number = 5,
volume = 26,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2018},
month = {Thu Mar 01 00:00:00 EST 2018}
}
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https://doi.org/10.1364/OE.26.006294
https://doi.org/10.1364/OE.26.006294
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Cited by: 6 works
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Figure 1: Schematic of experimental setup (not scaled).
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.