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Cold electrons acceleration in TNSA laser-generated plasma using a low-contrast fs laser
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SYSNO ASEP 0539476 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cold electrons acceleration in TNSA laser-generated plasma using a low-contrast fs laser Author(s) Torrisi, L. (IT)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Torrisi, Alfio (UJF-V) RID, ORCIDNumber of authors 3 Article number 20200097 Source Title Contributions to Plasma Physics. - : Wiley - ISSN 0863-1042
Roč. 61, č. 4 (2021)Number of pages 13 s. Publication form Print - P Language eng - English Country DE - Germany Keywords electron acceleration ; laser generated plasma ; SiC ; TNSA ; ToF Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects GBP108/12/G108 GA ČR - Czech Science Foundation (CSF) LM2015056 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000606815200001 EID SCOPUS 85099241198 DOI 10.1002/ctpp.202000097 Annotation The fs laser facility in Bordeaux, delivering an intensity of 10(18) W/cm(2) at normal incidence on thin foils, has been used to induce forward electron and ion acceleration in target-normal-sheath-acceleration (TNSA) regime. Micrometric thin foils with different composition, thickness, and electron density, were prepared to promote the charge particle acceleration in the forward direction. The plasma electron and ion emission monitoring were performed on-line using SiC semiconductor detectors in time-of-flight (TOF) configuration and gaf-chromics films both covered by thin absorber filters. The experiment has permitted to accelerate electrons and protons. A special attention was placed to detect relativistic hot electrons escaping from the plasma and cold electrons returning to the target position. The electron energies of the order of 100 keV and of about 1 keV were detected as representative of hot and cold electrons, respectively. A high cold electron contribution was measured using low-contrast fs laser, while it is less evident using high-contrast fs lasers. The charge particle acceleration depends on the laser parameters, irradiation conditions, and target properties, as will be presented and discussed. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2022 Electronic address https://doi.org/10.1002/ctpp.202000097
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