Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

A. S. Martynenko; S. A. Pikuz; I. Yu Skobelev; S. N. Ryazantsev; C. D. Baird; N. Booth; L. N.K. Döhl; P. Durey; A. Ya Faenov; D. Farley; R. Kodama; K. Lancaster; P. McKenna; C. D. Murphy; C. Spindloe; T. A. Pikuz; N. Woolsey

doi:10.1063/5.0025646

Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

A. S. Martynenko^*, S. A. Pikuz, I. Yu Skobelev, S. N. Ryazantsev, C. D. Baird, N. Booth, L. N.K. Döhl, P. Durey, A. Ya Faenov, D. Farley, R. Kodama, K. Lancaster, P. McKenna, C. D. Murphy, C. Spindloe, T. A. Pikuz, N. Woolsey

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	014405
Number of pages	9
Journal	Matter and Radiation at Extremes
Volume	6
Issue number	1
Early online date	24 Dec 2020
DOIs	https://doi.org/10.1063/5.0025646
Publication status	Published - 1 Jan 2021

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10.1063/5.0025646Licence: CC BY

5.0025646
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Martynenko, A. S., Pikuz, S. A., Skobelev, I. Y., Ryazantsev, S. N., Baird, C. D., Booth, N., Döhl, L. N. K., Durey, P., Faenov, A. Y., Farley, D., Kodama, R., Lancaster, K., McKenna, P., Murphy, C. D., Spindloe, C., Pikuz, T. A., & Woolsey, N. (2021). Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements. Matter and Radiation at Extremes, 6(1), Article 014405. https://doi.org/10.1063/5.0025646

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title = "Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements",

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 {\AA}-6 {\AA} (∼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. ",

author = "Martynenko, {A. S.} and Pikuz, {S. A.} and Skobelev, {I. Yu} and Ryazantsev, {S. N.} and Baird, {C. D.} and N. Booth and D{\"o}hl, {L. N.K.} and P. Durey and Faenov, {A. Ya} and D. Farley and R. Kodama and K. Lancaster and P. McKenna and Murphy, {C. D.} and C. Spindloe and Pikuz, {T. A.} and N. Woolsey",

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Martynenko, AS, Pikuz, SA, Skobelev, IY, Ryazantsev, SN, Baird, CD, Booth, N, Döhl, LNK, Durey, P, Faenov, AY, Farley, D, Kodama, R, Lancaster, K, McKenna, P, Murphy, CD, Spindloe, C, Pikuz, TA & Woolsey, N 2021, 'Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements', Matter and Radiation at Extremes, vol. 6, no. 1, 014405. https://doi.org/10.1063/5.0025646

TY - JOUR

T1 - Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

AU - Martynenko, A. S.

AU - Pikuz, S. A.

AU - Skobelev, I. Yu

AU - Ryazantsev, S. N.

AU - Baird, C. D.

AU - Booth, N.

AU - Döhl, L. N.K.

AU - Durey, P.

AU - Faenov, A. Ya

AU - Farley, D.

AU - Kodama, R.

AU - Lancaster, K.

AU - McKenna, P.

AU - Murphy, C. D.

AU - Spindloe, C.

AU - Pikuz, T. A.

AU - Woolsey, N.

PY - 2021/1/1

Y1 - 2021/1/1

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AB - 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.

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JO - Matter and Radiation at Extremes

JF - Matter and Radiation at Extremes

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ER -

Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

Abstract

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Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

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Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

Abstract

Bibliographical note

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Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

Cite this