Control of electron beam current, charge, and energy spread using density downramp injection in laser wakefield accelerators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F10974938%3A_____%2F25%3A25_86_21" target="_blank" >RIV/10974938:_____/25:25_86_21 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0295050" target="_blank" >https://doi.org/10.1063/5.0295050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0295050" target="_blank" >10.1063/5.0295050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Control of electron beam current, charge, and energy spread using density downramp injection in laser wakefield accelerators

Popis výsledku v původním jazyce

This study explores nanoparticle-assisted electron injection as a method for controlling beam charge in laser wakefield acceleration through particle-in-cell simulations. We systematically investigate how the material (Li through Au) and size (50–200 nm) of nanoparticles influence electron injection dynamics and beam charge. Our results demonstrate that beam charge (10–600 pC) can be effectively controlled by adjusting these parameters. We identify a saturation threshold in the nanoparticle electric field strength, beyond which beam charge depends on the total number of atoms in the nanoparticle rather than on the electron density after ionization. Significant electron injection occurs across multiple plasma wave periods with distribution patterns influenced by nanoparticle properties, leading to increased beam charge but a broader energy spread. These findings offer practical guidelines for experimental implementation of nanoparticle-assisted injection in laser wakefield accelerators to tailor electron beam characteristics for various applications.

Název v anglickém jazyce

Control of electron beam current, charge, and energy spread using density downramp injection in laser wakefield accelerators

Popis výsledku anglicky

This study explores nanoparticle-assisted electron injection as a method for controlling beam charge in laser wakefield acceleration through particle-in-cell simulations. We systematically investigate how the material (Li through Au) and size (50–200 nm) of nanoparticles influence electron injection dynamics and beam charge. Our results demonstrate that beam charge (10–600 pC) can be effectively controlled by adjusting these parameters. We identify a saturation threshold in the nanoparticle electric field strength, beyond which beam charge depends on the total number of atoms in the nanoparticle rather than on the electron density after ionization. Significant electron injection occurs across multiple plasma wave periods with distribution patterns influenced by nanoparticle properties, leading to increased beam charge but a broader energy spread. These findings offer practical guidelines for experimental implementation of nanoparticle-assisted injection in laser wakefield accelerators to tailor electron beam characteristics for various applications.

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/GF22-42963L" target="_blank" >GF22-42963L: Fyzika plazmatu silných QED polí v laboratořích vybavených lasery s výkonem PW a více</a><br>

Návaznosti

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

Rok uplatnění

2025

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

32

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

123104 (1 - 10)

Kód UT WoS článku

001638931100001

EID výsledku v databázi Scopus

2-s2.0-105024983127