Generation of Secondary Particles from Subnanosecond Laser Irradiation of Targets at Intensities of 10(16) W cm(-2)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00209426" target="_blank" >RIV/68407700:21230/13:00209426 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TPS.2013.2254134" target="_blank" >http://dx.doi.org/10.1109/TPS.2013.2254134</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TPS.2013.2254134" target="_blank" >10.1109/TPS.2013.2254134</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Generation of Secondary Particles from Subnanosecond Laser Irradiation of Targets at Intensities of 10(16) W cm(-2)

Popis výsledku v původním jazyce

Emission of several tens of mA/cm(2) currents carried by MeV-protons is reported for plasmas produced by a beam of the 3-TW kJ-class Prague Asterix Laser System (PALS) focused onto foil targets of various thicknesses. The maximum proton energy of 4.2 MeVis observed at a modest irradiance (I lambda(2) similar to 2 x 10(16) W cm(-2) mu m(2)). According to the maximum ion energy scaling E-M similar to (I lambda(2))(0.4) found for picosecond lasers such a value should be reached at I lambda(2) similar to 3x 10(18) W cm(-2) mu m(2). Enhancement of the maximum proton energy can be explained by nonlinear interaction of the PALS laser beam with the generated plasma. Nonlinear effects also result in enhancement in the yield of fusion neutrons from CD2 plasma.The obtained yield of 4 x 10(5) DD-neutrons per laser energy is comparable to those obtained by the use of ps- and fs-lasers irradiating targets with I lambda(2) similar to 10(19) W cm(-2) mu m(2).

Název v anglickém jazyce

Generation of Secondary Particles from Subnanosecond Laser Irradiation of Targets at Intensities of 10(16) W cm(-2)

Popis výsledku anglicky

Emission of several tens of mA/cm(2) currents carried by MeV-protons is reported for plasmas produced by a beam of the 3-TW kJ-class Prague Asterix Laser System (PALS) focused onto foil targets of various thicknesses. The maximum proton energy of 4.2 MeVis observed at a modest irradiance (I lambda(2) similar to 2 x 10(16) W cm(-2) mu m(2)). According to the maximum ion energy scaling E-M similar to (I lambda(2))(0.4) found for picosecond lasers such a value should be reached at I lambda(2) similar to 3x 10(18) W cm(-2) mu m(2). Enhancement of the maximum proton energy can be explained by nonlinear interaction of the PALS laser beam with the generated plasma. Nonlinear effects also result in enhancement in the yield of fusion neutrons from CD2 plasma.The obtained yield of 4 x 10(5) DD-neutrons per laser energy is comparable to those obtained by the use of ps- and fs-lasers irradiating targets with I lambda(2) similar to 10(19) W cm(-2) mu m(2).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/GAP205%2F12%2F0454" target="_blank" >GAP205/12/0454: Účinná produkce fúzních neutronů v Z-pinčích a v laserem produkovaném plazmatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Plasma Science

ISSN

0093-3813

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

2819-2824

Kód UT WoS článku

000325945900044

EID výsledku v databázi Scopus

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