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Kvantovaya Elektronika, 2016, Volume 46, Number 5, Pages 432–436 (Mi qe16389)  

This article is cited in 9 scientific papers (total in 9 papers)

Extreme laser radiation: physics and fundamental applications

Acceleration of multiply charged ions by a high-contrast femtosecond laser pulse of relativistic intensity with the front surface of a solid target

S. A. Shulyapovab, I. M. Mordvintsevab, K. A. Ivanovab, R. V. Volkovab, P. I. Zarubinc, I. Ambrožovád, K. Turekd, A. B. Savel'evab

a Lomonosov Moscow State University, Faculty of Physics
b International Laser Center of Moscow State University
c Joint Institute for Nuclear Research, Dubna, Moscow region
d Department of Radiation Dosimetry Nuclear Physics Institute, Academy of Sciences of the Czech Republic, Czech Republic

Abstract: 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 × 1018 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.

Keywords: relativistic intensity, contrast, laser plasma, ion acceleration, multiply charged ions, collision ionisation.

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English version:
Quantum Electronics, 2016, 46:5, 432–436

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Received: 18.02.2016
Revised: 11.04.2016

Citation: S. A. Shulyapov, I. M. Mordvintsev, K. A. Ivanov, R. V. Volkov, P. I. Zarubin, I. Ambrožová, K. Turek, A. B. Savel'ev, “Acceleration of multiply charged ions by a high-contrast femtosecond laser pulse of relativistic intensity with the front surface of a solid target”, Kvantovaya Elektronika, 46:5 (2016), 432–436 [Quantum Electron., 46:5 (2016), 432–436]

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    3. V. S. Belyaev, B. V. Zagreev, A. Yu. Kedrov, D. V. Kovkov, A. V. Lobanov, A. P. Matafonov, A. B. Savel'ev, I. M. Mordvincev, I. N. Tsymbalov, S. A. Shulyapov, A. A. Paskhalov, N. V. Eremin, V. P. Krainov, Laser Phys., 27:6 (2017), 066001  crossref  isi
    4. V. M. Zhuravlev, I. O. Zolotovskii, P. P. Mironov, Opt. Spectrosc., 122:5 (2017), 774–783  crossref  isi
    5. P. Varmazyar, S. Mirzanejhad, T. Mohsenpour, Laser Part. Beams, 36:2 (2018), 226–231  crossref  isi  scopus
    6. I. M. Mordvintsev, S. A. Shulyapov, A. B. Savel'ev, Instrum. Exp. Tech., 62:6 (2019), 737–745  crossref  isi  scopus
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  • Квантовая электроника Quantum Electronics
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