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Akademický článek

Investigation on the origin of hot electrons in laser plasma interaction at shock ignition intensities

Publikováno v: Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)

Abstract Shock Ignition is a two-step scheme to reach Inertial Confinement Fusion, where the precompressed fuel capsule is ignited by a strong shock driven by a laser pulse at an intensity in the order of $$10^{16}$$ 10 16 W/cm $$^2$$ 2 . In this rep

Externí odkaz: https://doaj.org/article/88fb3e89f65646b9957a31ba018082c8

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Akademický článek

Metrology for sub-Rayleigh-length target positioning in ∼1022 W/cm2 laser–plasma experiments

Publikováno v: High Power Laser Science and Engineering, Vol 12 (2024)

Tight focusing with very small f-numbers is necessary to achieve the highest at-focus irradiances. However, tight focusing imposes strong demands on precise target positioning in-focus to achieve the highest on-target irradiance. We describe several

Externí odkaz: https://doaj.org/article/95d332ceaf9d454ab14fd3211bbff0f8

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Akademický článek

Characterization of hot electrons generated by laser–plasma interaction at shock ignition intensities

Publikováno v: Matter and Radiation at Extremes, Vol 8, Iss 6, Pp 065602-065602-16 (2023)

In an experiment carried out at the Prague Asterix Laser System at laser intensities relevant to shock ignition conditions (I > 1016 W/cm2), the heating and transport of hot electrons were studied by using several complementary diagnostics, i.e., Kα

Externí odkaz: https://doaj.org/article/3a4141ae37e645e0a33108517128edf2

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Akademický článek

Methods of controlled formation of instabilities during the electrical explosion of thin foils

Autor: T. A. Shelkovenko, I. N. Tilikin, A. V. Oginov, A. R. Mingaleev, V. M. Romanova, S. A. Pikuz

Publikováno v: Matter and Radiation at Extremes, Vol 8, Iss 5, Pp 055601-055601-7 (2023)

The results of a study of the electrical explosion of aluminum foils with an artificial periodic surface structure created by laser engraving are presented. Experiments were carried out on pulsed high-current generators BIN (270 kA, 300 kV, 100 ns) a

Externí odkaz: https://doaj.org/article/2117b43affda487199d76ddf86bab393

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Akademický článek

A portable X-pinch design for x-ray diagnostics of warm dense matter

Autor: J. Strucka, J. W. D. Halliday, T. Gheorghiu, H. Horton, B. Krawczyk, P. Moloney, S. Parker, G. Rowland, N. Schwartz, S. Stanislaus, S. Theocharous, C. Wilson, Z. Zhao, T. A. Shelkovenko, S. A. Pikuz, S. N. Bland

Publikováno v: Matter and Radiation at Extremes, Vol 7, Iss 1, Pp 016901-016901-11 (2022)

We describe the design and x-ray emission properties (temporal, spatial, and spectral) of Dry Pinch I, a portable X-pinch driver developed at Imperial College London. Dry Pinch I is a direct capacitor discharge device, 300 × 300 × 700 mm3 in size a

Externí odkaz: https://doaj.org/article/fab3b64d555e4f60bb8e4026fad7458f

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Akademický článek

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

Autor: 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

Publikováno v: Matter and Radiation at Extremes, Vol 6, Iss 1, Pp 014405-014405-8 (2021)

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 t

Externí odkaz: https://doaj.org/article/86fa2ca1bedd4c3e8b9de3b26b2a7a46

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Akademický článek

Precise wavelength measurements of potassium He- and Li-like satellites emitted from the laser plasma of a mineral target

Autor: S. N. Ryazantsev, I. Yu. Skobelev, E. D. Filippov, A. S. Martynenko, M. D. Mishchenko, M. Krůs, O. Renner, S. A. Pikuz

Publikováno v: Matter and Radiation at Extremes, Vol 6, Iss 1, Pp 014402-014402-6 (2021)

Atomic models of high-Z multicharged ions are extremely complex and require experimental validation. One way to do so is to crosscheck the predicted wavelengths of resonance transitions in He- and Li-like ions against precise spectroscopic measure

Externí odkaz: https://doaj.org/article/ee906662fa294ab7ba6a659a710b6b09

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