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Akademický článek

Experimental measurements of gamma-photon production and estimation of electron/positron production on the PETAL laser facility

Autor: F. Brun, L. Ribotte, G. Boutoux, X. Davoine, P. E. Masson-Laborde, Y. Sentoku, N. Iwata, N. Blanchot, D. Batani, I. Lantuéjoul, L. Lecherbourg, B. Rosse, C. Rousseaux, B. Vauzour, D. Raffestin, E. D’Humières, X. Ribeyre

Publikováno v: Matter and Radiation at Extremes, Vol 9, Iss 5, Pp 057203-057203-16 (2024)

This article reports the first measurements of high-energy photons produced with the high-intensity PETawatt Aquitaine Laser (PETAL) laser. The experiments were performed during the commissioning of the laser. The laser had an energy of about 400 J,

Externí odkaz: https://doaj.org/article/98ed81005eb949d3bcf6f1044a49f02b

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Akademický článek

Radioisotope production using lasers: From basic science to applications

Publikováno v: Matter and Radiation at Extremes, Vol 9, Iss 3, Pp 037203-037203-14 (2024)

The discovery of chirped pulse amplification has led to great improvements in laser technology, enabling energetic laser beams to be compressed to pulse durations of tens of femtoseconds and focused to a few micrometers. Protons with energies of tens

Externí odkaz: https://doaj.org/article/bca5939d63b14b0395df0e868c8a51b4

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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

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

Comparison of chamber beam geometry robustness to mispointing, imbalance and target offset for direct-drive laser fusion facilities

Autor: D. Viala, A. Colaïtis, D. Barlow, D. Batani

Publikováno v: Nuclear Fusion, Vol 64, Iss 12, p 126043 (2024)

This study focuses on the optimization of beam chamber geometry designs for future direct-drive laser facilities. It provides a review of leading target chamber geometries, with a particular emphasis on random errors. Through comprehensive solid-sphe

Externí odkaz: https://doaj.org/article/760bc67009ae4405a7fc6708a9f1edcb

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Akademický článek

Proton stopping measurements at low velocity in warm dense carbon

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)

Charged particle interaction and energy dissipation in plasma is fundamentally interesting. Here the authors study proton stopping in laser-produced plasma for the moderate to strong coupling with electrons.

Externí odkaz: https://doaj.org/article/d0e96f5eea0d4a6fae76cfd9dff04784

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Akademický článek

Multibeam laser–plasma interaction at the Gekko XII laser facility in conditions relevant for direct-drive inertial confinement fusion

Publikováno v: High Power Laser Science and Engineering, Vol 11 (2023)

Laser–plasma interaction and hot electrons have been characterized in detail in laser irradiation conditions relevant for direct-drive inertial confinement fusion. The experiment was carried out at the Gekko XII laser facility in multibeam planar t

Externí odkaz: https://doaj.org/article/e447f25c41384ef78f0bd840008b9a92

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Akademický článek

3D Monte-Carlo model to study the transport of hot electrons in the context of inertial confinement fusion. Part II

Autor: A. Tentori, A. Colaïtis, D. Batani

Publikováno v: Matter and Radiation at Extremes, Vol 7, Iss 6, Pp 065903-065903-12 (2022)

We describe two numerical investigations performed using a 3D plasma Monte-Carlo code, developed to study hot-electron transport in the context of inertial confinement fusion. The code simulates the propagation of hot electrons in ionized targets, us

Externí odkaz: https://doaj.org/article/3439aa77373341c696c3f43fc3a4f4d4

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Akademický článek

Effects of hydrogen concentration in ablator material on stimulated Raman scattering, two-plasmon decay, and hot electrons for direct-drive inertial confinement fusion

Publikováno v: Physical Review Research, Vol 5, Iss 3, p 033051 (2023)

Laser plasma instabilities, such as stimulated Raman scattering (SRS) and two-plasmon decay (TPD), are basic phenomena in intense laser science and applications. In direct-drive inertial confinement fusion (ICF) where a fuel capsule is imploded by hi

Externí odkaz: https://doaj.org/article/106b63fc69fd4758bd2befee36063c79

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Akademický článek

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Autor: J. I. Apiñaniz, S. Malko, R. Fedosejevs, W. Cayzac, X. Vaisseau, D. de Luis, G. Gatti, C. McGuffey, M. Bailly-Grandvaux, K. Bhutwala, V. Ospina-Bohorquez, J. Balboa, J. J. Santos, D. Batani, F. Beg, L. Roso, J. A. Perez-Hernandez, L. Volpe

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)

Abstract We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate. The protons are generated with an ultrashort-pulse laser interacting with a solid target and convert

Externí odkaz: https://doaj.org/article/119fa299a0c246dba03c50ba650341f2

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