Hot electron emission characteristics from thin metal foil targets irradiated by terawatt laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F24%3A00617086" target="_blank" >RIV/61389021:_____/24:00617086 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/24:00586825 RIV/68407700:21230/24:00374760 RIV/68407700:21340/24:00374760 RIV/CZ______:_____/24:N0000017 RIV/00216208:11320/24:10484950

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/laser-and-particle-beams/article/hot-electron-emission-characteristics-from-thin-metal-foil-targets-irradiated-by-terawatt-laser/EA3361FD189F87F64AD6B7B7178A52C4" target="_blank" >https://www.cambridge.org/core/journals/laser-and-particle-beams/article/hot-electron-emission-characteristics-from-thin-metal-foil-targets-irradiated-by-terawatt-laser/EA3361FD189F87F64AD6B7B7178A52C4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/lpb.2023.2" target="_blank" >10.1017/lpb.2023.2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hot electron emission characteristics from thin metal foil targets irradiated by terawatt laser

Popis výsledku v původním jazyce

The interaction of focused high power laser beam with solid targets leads to acceleration of charged particles among other by non-linear effects in the plasma. In this experiment, the hot electrons are characterized from the interaction of sub-nanosecond and kilo-joule class laser pulse with thin metal foil targets (Cu, Ta, Ti, Sn, Pb). The energy distribution functions of electrons were measured by angularly resolved multichannel electron spectrometer. The hot electron temperatures were observed in range from 30 to 80 keV for laser intensities between ${sim}10<^>{15}$ and $3 times 10<^>{16} mathrm{W,cm<^>{-2}}$. The measured energy distribution and electron temperature were compared with published results and known scaling laws at higher laser intensities. For foil targets of different materials, the temperature and flux of hot electrons were scaled with target thickness in the range of 1-100 $unicode{x03BC}mathrm{m}$ from low Z to high Z materials where Z is the atomic number. The profile of conversion efficiency from laser energy to hot electrons is discussed in the energy range from 100 to 600 J. For the given laser and target parameters, the nonlinear behaviour of conversion efficiency and relevant physics are also described in detail.

Název v anglickém jazyce

Hot electron emission characteristics from thin metal foil targets irradiated by terawatt laser

Popis výsledku anglicky

The interaction of focused high power laser beam with solid targets leads to acceleration of charged particles among other by non-linear effects in the plasma. In this experiment, the hot electrons are characterized from the interaction of sub-nanosecond and kilo-joule class laser pulse with thin metal foil targets (Cu, Ta, Ti, Sn, Pb). The energy distribution functions of electrons were measured by angularly resolved multichannel electron spectrometer. The hot electron temperatures were observed in range from 30 to 80 keV for laser intensities between ${sim}10<^>{15}$ and $3 times 10<^>{16} mathrm{W,cm<^>{-2}}$. The measured energy distribution and electron temperature were compared with published results and known scaling laws at higher laser intensities. For foil targets of different materials, the temperature and flux of hot electrons were scaled with target thickness in the range of 1-100 $unicode{x03BC}mathrm{m}$ from low Z to high Z materials where Z is the atomic number. The profile of conversion efficiency from laser energy to hot electrons is discussed in the energy range from 100 to 600 J. For the given laser and target parameters, the nonlinear behaviour of conversion efficiency and relevant physics are also described in detail.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Laser and Particle Beams

ISSN

0263-0346

e-ISSN

1469-803X

Svazek periodika

42

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

e2

Kód UT WoS článku

001203272100001

EID výsledku v databázi Scopus

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