| Title: |
Toward controlling electron beam charge with nanoparticle-assisted laser wakefield accelerators |
| Authors: |
Špádová, A.; Valenta, P.; Lorenz, S.; Nevrkla, M.; Nejdl, J.; Grittani, G. M.; Bulanov, S. V. |
| Contributors: |
Ministerstvo Školství, Mládeže a Tělovýchovy; Grantová Agentura České Republiky; National Science Foundation |
| Source: |
Physics of Plasmas ; volume 32, issue 12 ; ISSN 1070-664X 1089-7674 |
| Publisher Information: |
AIP Publishing |
| Publication Year: |
2025 |
| Description: |
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. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1063/5.0295050 |
| DOI: |
10.1063/5.0295050/20835716/123104_1_5.0295050.pdf |
| Availability: |
https://doi.org/10.1063/5.0295050; https://pubs.aip.org/aip/pop/article-pdf/doi/10.1063/5.0295050/20835716/123104_1_5.0295050.pdf |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.6C3F7B7D |
| Database: |
BASE |