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Polarization of plastic targets by laser ablation
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SYSNO ASEP 0471561 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polarization of plastic targets by laser ablation Author(s) Giuffreda, E. (IT)
Delle Side, D. (IT)
Krása, Josef (FZU-D) RID, ORCID
Nassisi, V. (IT)Number of authors 4 Article number C05004 Source Title Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 11, May (2016), s. 1-6Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords lasers ; ion sources ; wake-field acceleration Subject RIV BL - Plasma and Gas Discharge Physics Institutional support FZU-D - RVO:68378271 UT WOS 000377851700004 EID SCOPUS 84969164745 DOI 10.1088/1748-0221/11/05/C05004 Annotation Charge separation in plasmas produced on plastic targets by low laser irradiance, structure of the ion front, and the current of fast electrons expanding into the vacuum chamber ahead of ions are characterized. Of particular interest is the negative current flowing through the plastic targets to the grounded vacuum chamber during the period of laser-target interaction. The subsequent multi peaked structure of positive target current is correlated with occurrence of double sheet layers. The late-time negative charging of targets provides evidence for production of very slow ions by ionization of neutrals ablated at the target crater by radiation from plasma produced by 23 ns excimer KrF laser. The experimental setting allowing the target current observation is discussed. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
Number of the records: 1