Ultra-intense laser interaction with specially-designed targets as a source of energetic protons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00319819" target="_blank" >RIV/68407700:21340/17:00319819 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2271026" target="_blank" >http://dx.doi.org/10.1117/12.2271026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2271026" target="_blank" >10.1117/12.2271026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultra-intense laser interaction with specially-designed targets as a source of energetic protons

Popis výsledku v původním jazyce

In this contribution, we discuss the optimization of laser driven proton acceleration efficiency by nanostructured targets, interpret the experimental results showing the manipulation of proton beam profiles by nanosctructured rear surface of the targets and investigate the acceleration of protons from hydrogen solid ribbon by PW-class lasers, with the help of multidimensional particle-in-cell simulations. Microstructured hollow targets are proposed to enhance the absorption of the laser pulse energy while keeping the target thickness to minimum, which is both favorable for enhanced efficiency of the acceleration of protons. Thin targets with grating structures of various configurations on their rear sides stretch the proton beams in the perpendicular direction to the grating orientation due to transverse electric fields generated inside the target grooves and can reduce the proton beam divergence in the parallel direction to the grating due to a lower density of the stretched beam compared with flat foils. Finally, it is shown that when multiPW laser pulse interacts with hydrogen solid ribbon, hole boring radiation pressure acceleration (RPA) dominates over the target normal sheath acceleration (TNSA).

Název v anglickém jazyce

Ultra-intense laser interaction with specially-designed targets as a source of energetic protons

Popis výsledku anglicky

In this contribution, we discuss the optimization of laser driven proton acceleration efficiency by nanostructured targets, interpret the experimental results showing the manipulation of proton beam profiles by nanosctructured rear surface of the targets and investigate the acceleration of protons from hydrogen solid ribbon by PW-class lasers, with the help of multidimensional particle-in-cell simulations. Microstructured hollow targets are proposed to enhance the absorption of the laser pulse energy while keeping the target thickness to minimum, which is both favorable for enhanced efficiency of the acceleration of protons. Thin targets with grating structures of various configurations on their rear sides stretch the proton beams in the perpendicular direction to the grating orientation due to transverse electric fields generated inside the target grooves and can reduce the proton beam divergence in the parallel direction to the grating due to a lower density of the stretched beam compared with flat foils. Finally, it is shown that when multiPW laser pulse interacts with hydrogen solid ribbon, hole boring radiation pressure acceleration (RPA) dominates over the target normal sheath acceleration (TNSA).

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GA15-02964S" target="_blank" >GA15-02964S: Interakce vysoce intenzivního laserového impulzu se speciálně navrženými terči jako zdroj energetických částic a záření</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proc. SPIE 10241, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers III

ISBN

978-1-5106-0983-9

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

7

Strana od-do

"102411K-1"-"102411K-7"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Praha

Datum konání akce

24. 4. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000406963300012