Cold electrons acceleration in TNSA laser-generated plasma using a low-contrast fs laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00539476" target="_blank" >RIV/61389005:_____/21:00539476 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/ctpp.202000097" target="_blank" >https://doi.org/10.1002/ctpp.202000097</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ctpp.202000097" target="_blank" >10.1002/ctpp.202000097</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cold electrons acceleration in TNSA laser-generated plasma using a low-contrast fs laser

Popis výsledku v původním jazyce

The fs laser facility in Bordeaux, delivering an intensity of 10(18) W/cm(2) at normal incidence on thin foils, has been used to induce forward electron and ion acceleration in target-normal-sheath-acceleration (TNSA) regime. Micrometric thin foils with different composition, thickness, and electron density, were prepared to promote the charge particle acceleration in the forward direction. The plasma electron and ion emission monitoring were performed on-line using SiC semiconductor detectors in time-of-flight (TOF) configuration and gaf-chromics films both covered by thin absorber filters. The experiment has permitted to accelerate electrons and protons. A special attention was placed to detect relativistic hot electrons escaping from the plasma and cold electrons returning to the target position. The electron energies of the order of 100 keV and of about 1 keV were detected as representative of hot and cold electrons, respectively. A high cold electron contribution was measured using low-contrast fs laser, while it is less evident using high-contrast fs lasers. The charge particle acceleration depends on the laser parameters, irradiation conditions, and target properties, as will be presented and discussed.

Název v anglickém jazyce

Cold electrons acceleration in TNSA laser-generated plasma using a low-contrast fs laser

Popis výsledku anglicky

The fs laser facility in Bordeaux, delivering an intensity of 10(18) W/cm(2) at normal incidence on thin foils, has been used to induce forward electron and ion acceleration in target-normal-sheath-acceleration (TNSA) regime. Micrometric thin foils with different composition, thickness, and electron density, were prepared to promote the charge particle acceleration in the forward direction. The plasma electron and ion emission monitoring were performed on-line using SiC semiconductor detectors in time-of-flight (TOF) configuration and gaf-chromics films both covered by thin absorber filters. The experiment has permitted to accelerate electrons and protons. A special attention was placed to detect relativistic hot electrons escaping from the plasma and cold electrons returning to the target position. The electron energies of the order of 100 keV and of about 1 keV were detected as representative of hot and cold electrons, respectively. A high cold electron contribution was measured using low-contrast fs laser, while it is less evident using high-contrast fs lasers. The charge particle acceleration depends on the laser parameters, irradiation conditions, and target properties, as will be presented and discussed.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Contributions to Plasma Physics

ISSN

0863-1042

e-ISSN

1521-3986

Svazek periodika

61

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

20200097

Kód UT WoS článku

000606815200001

EID výsledku v databázi Scopus

2-s2.0-85099241198