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Modelling of capillary Z-pinch recombination pumping of boron extreme ultraviolet laser
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SYSNO ASEP 0328393 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Modelling of capillary Z-pinch recombination pumping of boron extreme ultraviolet laser Title Modelování kapilárního Z-pinče pro rekombinační boronový UV laser Author(s) Vrba, Pavel (UFP-V) RID
Bobrova, N. A. (RU)
Sasorov, P. V. (RU)
Vrbová, M. (CZ)
Hübner, Jakub (UFP-V)Source Title Physics of Plasmas - ISSN 1070-664X
Roč. 16, č. 7 (2009), 073105 1-073105 11Number of pages 11 s. Publication form web - web Language eng - English Country US - United States Keywords Boron ; capillary ; discharges (electric ; laser ablation ; optical pumping ; plasma heating by laser ; plasma kinetic theory ; plasma magnetohydrodynamics ; Z pinch Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA102/07/0275 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000268615200047 DOI 10.1063/1.3160610 Annotation Computer modeling of fast capillary discharge is performed to investigate a new laser active medium created by excited hydrogenlike boron ions leading to lasing at 26.23 nm. Recombination excitation of the boron ions is expected in the undercooled pinching plasma created during the expansion phase of the pinch. Plasma dynamics is described by the magnetohydrodynamic code NPINCH and the plasma ion kinetics is evaluated according to the FLY code. Results of simulations for capillary filled with boron are reported and compared with previous results achieved for nitrogen filled capillary. In both cases, the same nonablative capillary with radius of 1.6 mm is presumed and the current pulse with peak value 50 kA and 1012 A.s−1 current slope are taken into account. Evaluated pressure optimized gains are 1.04 and 0.11 cm−1 are found for boron and nitrogen filled capillary, respectively. Capillary wall ablation is then also assayed. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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