Bayesian optimization of electron energy from laser wakefield accelerators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F10974938%3A_____%2F25%3A25_86_18" target="_blank" >RIV/10974938:_____/25:25_86_18 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/knh7-hbr3" target="_blank" >https://doi.org/10.1103/knh7-hbr3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/knh7-hbr3" target="_blank" >10.1103/knh7-hbr3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bayesian optimization of electron energy from laser wakefield accelerators

Popis výsledku v původním jazyce

We use Bayesian optimization in combination with three-dimensional particle-in-cell simulations to determine the optimal laser and plasma parameters that, for a given laser pulse energy, maximize the cut-off energy of an electron beam produced by laser wakefield accelerators. We assume a Gaussian laser driver with matched spot size and amplitude and investigate both self-guiding in a uniform-density plasma and guiding in a preformed plasma channel with matched radius. To interpret the simulation results quantitatively, we derive novel analytical expressions for the maximum electron energy and the corresponding acceleration distance, accounting for the effects of laser diffraction and energy depletion. Based on the results obtained, we discuss the potential scalability of the optimal input (plasma density, pulse duration, amplitude, spot size, and channel radius) and output (electron energy, electron charge, acceleration length, and acceleration efficiency) parameters to laser systems of arbitrary energy.

Název v anglickém jazyce

Bayesian optimization of electron energy from laser wakefield accelerators

Popis výsledku anglicky

We use Bayesian optimization in combination with three-dimensional particle-in-cell simulations to determine the optimal laser and plasma parameters that, for a given laser pulse energy, maximize the cut-off energy of an electron beam produced by laser wakefield accelerators. We assume a Gaussian laser driver with matched spot size and amplitude and investigate both self-guiding in a uniform-density plasma and guiding in a preformed plasma channel with matched radius. To interpret the simulation results quantitatively, we derive novel analytical expressions for the maximum electron energy and the corresponding acceleration distance, accounting for the effects of laser diffraction and energy depletion. Based on the results obtained, we discuss the potential scalability of the optimal input (plasma density, pulse duration, amplitude, spot size, and channel radius) and output (electron energy, electron charge, acceleration length, and acceleration efficiency) parameters to laser systems of arbitrary energy.

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

PHYSICAL REVIEW ACCELERATORS AND BEAMS

ISSN

—

e-ISSN

2469-9888

Svazek periodika

28

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

094601

Kód UT WoS článku

001578346900002

EID výsledku v databázi Scopus

2-s2.0-105023094222