The influence of target irradiation conditions on the parameters of laser-produced plasma jets

Journal Article · Thu Mar 15 04:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2715560· OSTI ID:20974882

Kasperczuk, A; Pisarczyk, T; Borodziuk, S; Ullschmied, J; Krousky, E; Masek, K; Pfeifer, M; Rohlena, K; Skala, J; Pisarczyk, P ^[1]

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1. Institute of Plasma Physics and Laser Microfusion, 23 Hery Street, 00-908 Warsaw (Poland)

Recent experimental results demonstrate that the forming of plasma jets is a fundamental process accompanying the laser-produced plasma expansion, if a massive planar target with relatively high atomic number is irradiated by a defocused laser beam. In this paper some new results on the influence of target irradiation conditions on plasma jet parameters are presented. The experiment was carried out at the Prague Asterix Laser System (PALS) iodine laser [K. Jungwirth, A. Cejnarova, L. Juha, B. Kralikova, J. Krasa, E. Krousky, P. Krupickova, L. Laska, K. Masek, A. Prag, O. Renner, K. Rohlena, B. Rus, J. Skala, P. Straka, and J. Ullschmied, Phys. Plasmas 8, 2495 (2001)]. with the third harmonic beam of the pulse duration of 250 ps. The beam energies varied in the range of 13-160 J. The planar massive targets used in the experiment were made of copper. For measurements of the electron density evolution a three frame interferometric system was employed. The jets were produced in the whole range of the laser energy used. Calculations of the efficiency of the plasma jet production show that it decreases with increasing the laser energy.

• OSTI ID: 20974882
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 14; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATOMIC NUMBER
BEAMS
COPPER
ELECTRON DENSITY
IODINE LASERS
IRRADIATION
LASER-PRODUCED PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA JETS
PLASMA PRODUCTION