Martynenko, A. S., Pikuz, S. A., Skobelev, I. Yu et al. (14 more authors) (2021) Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements. Matter and Radiation at Extremes. 014405. ISSN 2468-080X
Abstract
X-ray absorption spectroscopy is a well-accepted diagnostic for experimental studies of warm dense matter. It requires a short-lived X-ray source of sufficiently high emissivity and without characteristic lines in the spectral range of interest. In the present work, we discuss how to choose an optimum material and thickness to get a bright source in the wavelength range 2 Å-6 Å (∼2 keV to 6 keV) by considering relatively low-Z elements. We demonstrate that the highest emissivity of solid aluminum and silicon foil targets irradiated with a 1-ps high-contrast sub-kJ laser pulse is achieved when the target thickness is close to 10 μm. An outer plastic layer can increase the emissivity even further.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2020 |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > York Institute for Materials Research The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/L000644/1 |
Depositing User: | Pure (York) |
Date Deposited: | 25 Jan 2021 15:20 |
Last Modified: | 21 Jan 2025 17:51 |
Published Version: | https://doi.org/10.1063/5.0025646 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1063/5.0025646 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:170448 |