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Improving laser-accelerated proton beam divergence by electric and magnetic fields induced in flat channel-like targets
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SYSNO ASEP 0563782 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Improving laser-accelerated proton beam divergence by electric and magnetic fields induced in flat channel-like targets Author(s) Greplová Žáková, Martina (FZU-D) ORCID
Pšikal, Jan (FZU-D) RID, ORCID
Schillaci, Francesco (FZU-D) ORCID
Margarone, Daniele (FZU-D) RID, ORCIDNumber of authors 4 Article number 085005 Source Title Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335
Roč. 63, č. 8 (2021)Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords laser-driven ion acceleration ; divergence ; magnetic multipole ; channel target Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects EF16_019/0000789 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LQ1606 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure ELI Beamlines III - 90141 - Fyzikální ústav AV ČR, v. v. i. Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000661239300001 EID SCOPUS 85108841482 DOI 10.1088/1361-6587/ac031a Annotation Improving parameters of laser-driven proton and ion beams becomes one of the most important goals in the field of laser acceleration in order to fulfill requirements of foreseen applications. This work presents parametric 2D and 3D particle-in-cell simulations of various target designs in order to reduce proton beam divergence without significant drop in maximum energies or in proton number. The optimal target design proved to be a channel-like target which produces not only a long-lasting focusing transverse electric field in contrast to a flat foil, but also a magnetic quadrupole with strong octupole component inside the guiding channel. A combination of both electric and magnetic features results in a strong proton beam divergence reduction, accompanied by a higher uniformity of the beam, which is studied as a function of proton energy. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1088/1361-6587/ac031a
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