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Creation of an axially uniform plasma channel in a laser-assisted capillary discharge
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SYSNO ASEP 0547111 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Creation of an axially uniform plasma channel in a laser-assisted capillary discharge Author(s) Bagdasarov, G.A. (RU)
Bobrova, N. A. (RU)
Olkhovskaya, O.G. (RU)
Gasilov, V.A. (RU)
Benedetti, C. (US)
Bulanov, S.S. (US)
Gonsalves, A.J. (US)
Pieronek, C.V. (US)
van Tilborg, J. (US)
Geddes, C.G.R. (US)
Schroeder, C.B. (US)
Sasorov, Pavel (FZU-D) ORCID
Bulanov, Sergey V. (FZU-D) ORCID
Korn, Georg (FZU-D) RID, ORCID
Esarey, E. (US)Number of authors 15 Article number 053104 Source Title Physics of Plasmas - ISSN 1070-664X
Roč. 28, č. 5 (2021)Number of pages 9 s. Language eng - English Country US - United States Keywords cappilary discharge plasma ; laser pulse guding ; mhd computer simulations Subject RIV BE - Theoretical Physics OECD category Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) R&D Projects EF15_003/0000449 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000678720500002 EID SCOPUS 85105866674 DOI 10.1063/5.0046428 Annotation Dissipative capillary discharges form plasma channels which allow for high power laser guiding, enabling efficient electron acceleration in a laser wakefield accelerator. However, at the low plasma densities required to produce high-energy electrons, in order to avoid capillary wall damage, high power lasers need a tighter transverse confinement that cannot be achieved by the capillary discharge powered by Ohmic heating alone. The introduction of an additional laser for heating of the plasma leads to deeper and narrower plasma channels. Here we investigate the formation of laser-heated axially uniform plasma channels. We show that a high degree of longitudinal uniformity can be achieved despite significant evolution of the heater laser during its propagation through the channel. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1063/5.0046428
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