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Emission characteristics and stability of laser ion sources
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SYSNO ASEP 0364213 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Emission characteristics and stability of laser ion sources Author(s) Krása, Josef (FZU-D) RID, ORCID
Velyhan, Andriy (FZU-D) RID, ORCID
Krouský, Eduard (FZU-D) RID
Láska, Leoš (FZU-D)
Rohlena, Karel (FZU-D) RID
Jungwirth, Karel (FZU-D) RID
Ullschmied, Jiří (UFP-V) RID
Lorusso, A. (IT)
Velardi, L. (IT)
Nassisi, V. (IT)
Czarnecka, A. (PL)
Ryc, L. (PL)
Parys, P. (PL)
Wolowski, J. (PL)Source Title New Trend in Applied Plasma Science and Technology. - Melville : American Institute of Physics, 2010 / Kobayashi A. ; Miyasaka T. ; Krása J. - ISBN 978-0-7354-0812-8 Pages s. 119-122 Number of pages 4 s. Action International Symposium on Applied Plasma Science /7./: ISAPS '09 Event date 31.08.2009-04.09.2009 VEvent location Hamburg Country DE - Germany Event type WRD Language eng - English Country US - United States Keywords laser ion sources ; ion emission reproducibility ; thermal and fast ions ; centre-of-mass veloci Subject RIV BH - Optics, Masers, Lasers R&D Projects IAA100100715 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10100523 - FZU-D (2005-2011) AV0Z20430508 - UFP-V (2005-2011) UT WOS 000287174100021 Annotation A new classification of laser ion sources concerning their pulse-to-pulse reproducibility in the ion emission is proposed. In particular, we distinguish between plasmas according to the electron distribution changing its characteristics at a laser intensity threshold of 10(14) W/cm(2). Well reproducible continuous pulsed ion currents are typical for the intensity below the threshold. In contrast to this plasma the "two-temperature" plasma arising for the intensity above this threshold shows not only a separation of charges in space and time but it also shows irregular and intense outbursts of ions similar to a self pulsing instability leading to a chaos. The sequence of fast ion outbursts visible on time-of-flight spectra is sensitive to details of non-linear interaction of the sub-nanosecond laser beam with the generated plasma. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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