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Target holder as a specific sensor for laser-induced plasma ablation
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SYSNO ASEP 0543188 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Target holder as a specific sensor for laser-induced plasma ablation Author(s) Krása, Josef (FZU-D) RID, ORCID
Nassisi, V. (IT)
Klír, D. (CZ)Number of authors 3 Article number 126980 Source Title Physics Letters. A. - : Elsevier - ISSN 0375-9601
Roč. 385, Jan (2021)Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords charge separation ; laser ablation ; isolated and grounded target ; target charging ; phases of plasma ; ion emission Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects LTT17015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA19-02545S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000590415400020 EID SCOPUS 85096214294 DOI 10.1016/j.physleta.2020.126980 Annotation We have used grounded and isolated targets to measure currents of electrons escaping the pulsed laser-produced plasma. Presented experiments show that the laser-produced plasma is dominated by three phases such as the ignition phase, active and afterglow phases. The last two phases occurring after laser-plasma interaction are influenced by whether the target is isolated from the vacuum chamber or grounded. The voltage arising on the isolated target, which acts as a capacitor, mainly affects the active phase, where collisions of particles still form the plasma. This can cause reduction in ion emissions, as observed for heavier elements. The target charging accompanying the laser ablation was driven by nanosecond laser radiation with fluence ranging between 1–4 J/cm2. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.physleta.2020.126980
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