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Acceleration of multiply charged ions by a high-contrast femtosecond laser pulse of relativistic intensity from the front surface of a solid target
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SYSNO ASEP 0460802 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Acceleration of multiply charged ions by a high-contrast femtosecond laser pulse of relativistic intensity from the front surface of a solid target Author(s) Shulyapov, S. A. (RU)
Mordvintsev, I. M. (RU)
Ivanov, K. A. (RU)
Volkov, P. V. (RU)
Zarubin, P. I. (RU)
Ambrožová, Iva (UJF-V) RID, ORCID, SAI
Turek, Karel (UJF-V) ORCID, SAI
Savelyev, A. B. (RU)Number of authors 8 Source Title Quantum Electronics - ISSN 1063-7818
Roč. 46, č. 5 (2016), s. 432-436Number of pages 5 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords relativistic intensity ; contrast ; laser plasma ; ion acceleration ; multiply charged ions ; collision ionisation Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders Institutional support UJF-V - RVO:61389005 UT WOS 000378227000007 EID SCOPUS 84973442868 DOI 10.1070/QEL16032 Annotation It is shown that the acceleration efficiency of protons and multiply charged ions (and also the charge composition of the latter) accelerated backwards under irradiation of the front surface of thick solid targets by high-power femtosecond laser radiation with an intensity of 2 x 10(18) W cm(-2) is determined by the contrast of this radiation. Thus, highly ionised ions up to C6+, Si12+ and Mo14+ are recorded on polyethylene, silicon and molybdenum targets at a contrast of 10(-8), the ions with charges up to C5+, Si10+ and Mo10+ possessing an energy of more than 100 keV per unit charge. In the case of a metal target, the acceleration efficiency of protons is significantly reduced, which indicates cleaning of the target surface by a pre-pulse. The measurements performed at a contrast increased by two-to-three orders of magnitude show the presence of fast protons (up to 300-700 keV) on all targets, and also a decrease in the energy and maximum charge of multiply charged ions. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2017
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