Study of radiative shocks using 2D interferometry and XUV spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2FCZ______%3A_____%2F24%3AN0000068" target="_blank" >RIV/CZ______:_____/24:N0000068 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/24:00584825 RIV/61389021:_____/24:00617074

Výsledek na webu

<a href="https://pubs.aip.org/aip/pop/article/31/3/033301/3268442/Study-of-radiative-shocks-using-2D-interferometry" target="_blank" >https://pubs.aip.org/aip/pop/article/31/3/033301/3268442/Study-of-radiative-shocks-using-2D-interferometry</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0188810" target="_blank" >10.1063/5.0188810</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of radiative shocks using 2D interferometry and XUV spectroscopy

Popis výsledku v původním jazyce

We report new experimental results on radiative shocks obtained in Xenon and Argon in gas cells at two different pressures below 1 bar. These shock waves are generated by the interaction of the PALS iodine laser on a CH-Au foil with a typical velocity in the range of 50-100 km/s depending on the variable laser intensity, pressure, and gas. Attention is paid to the morphology and the dynamics of the radiative precursor over large time scales up to 30 ns, using 2D sub-picosecond visible interferometry, illustrating the complex interplay of hydrodynamic and radiation absorption for different initial conditions. The comparison between 1D and 2D simulations confirms the role played by lateral radiative losses in the ionization wave and the necessity of state-of-the-art integrated opacities. This study is complemented by the first XUV analysis of the shock emission between 5 and 20 nm obtained with a grating spectrometer, with line identification, which is compatible with the ionization stages deduced from interferometry and simulations.

Název v anglickém jazyce

Study of radiative shocks using 2D interferometry and XUV spectroscopy

Popis výsledku anglicky

We report new experimental results on radiative shocks obtained in Xenon and Argon in gas cells at two different pressures below 1 bar. These shock waves are generated by the interaction of the PALS iodine laser on a CH-Au foil with a typical velocity in the range of 50-100 km/s depending on the variable laser intensity, pressure, and gas. Attention is paid to the morphology and the dynamics of the radiative precursor over large time scales up to 30 ns, using 2D sub-picosecond visible interferometry, illustrating the complex interplay of hydrodynamic and radiation absorption for different initial conditions. The comparison between 1D and 2D simulations confirms the role played by lateral radiative losses in the ionization wave and the necessity of state-of-the-art integrated opacities. This study is complemented by the first XUV analysis of the shock emission between 5 and 20 nm obtained with a grating spectrometer, with line identification, which is compatible with the ionization stages deduced from interferometry and simulations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LM2023068" target="_blank" >LM2023068: Prague Asterix Laser System</a><br>

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics of Plasmas

ISSN

1070-664X

e-ISSN

1089-7674

Svazek periodika

31

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

033301(1-15)

Kód UT WoS článku

001180029000004

EID výsledku v databázi Scopus

2-s2.0-85186961177