On the cooling of the plasma fireball produced by a laser spark in front of liquids and solids

D. Kaganovch; B. Meerson; A. Zigler; C. Cohen; J. Levin

doi:10.1063/1.871890

On the cooling of the plasma fireball produced by a laser spark in front of liquids and solids

D. Kaganovch^*, B. Meerson, A. Zigler, C. Cohen, J. Levin

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The results of experimental and theoretical investigation of the late, conductive-advectivc cooling of the fireball, produced by a laser spark in gas near a surface of condensed matter, are presented. The laser spark was initialed by the focusing of a 0.5 J 8 ns Nd: YAG laser. The fireball cooling rate was studied by using a fast frame camera and monochromatic imaging. A theoretical model is developed to describe the conducove-advective cooling stage. The model is reduced to a single nonlinear temperature diffusion equation. In the spherically symmetric case, a similarity solution found earlier is verified and employed for interpreting the experimental results.

Original language	English
Pages (from-to)	631-638
Number of pages	8
Journal	Physics of Plasmas
Volume	3
Issue number	2
DOIs	https://doi.org/10.1063/1.871890
State	Published - Feb 1996

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abstract = "The results of experimental and theoretical investigation of the late, conductive-advectivc cooling of the fireball, produced by a laser spark in gas near a surface of condensed matter, are presented. The laser spark was initialed by the focusing of a 0.5 J 8 ns Nd: YAG laser. The fireball cooling rate was studied by using a fast frame camera and monochromatic imaging. A theoretical model is developed to describe the conducove-advective cooling stage. The model is reduced to a single nonlinear temperature diffusion equation. In the spherically symmetric case, a similarity solution found earlier is verified and employed for interpreting the experimental results.",

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AU - Kaganovch, D.

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AU - Zigler, A.

AU - Cohen, C.

AU - Levin, J.

PY - 1996/2

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N2 - The results of experimental and theoretical investigation of the late, conductive-advectivc cooling of the fireball, produced by a laser spark in gas near a surface of condensed matter, are presented. The laser spark was initialed by the focusing of a 0.5 J 8 ns Nd: YAG laser. The fireball cooling rate was studied by using a fast frame camera and monochromatic imaging. A theoretical model is developed to describe the conducove-advective cooling stage. The model is reduced to a single nonlinear temperature diffusion equation. In the spherically symmetric case, a similarity solution found earlier is verified and employed for interpreting the experimental results.

AB - The results of experimental and theoretical investigation of the late, conductive-advectivc cooling of the fireball, produced by a laser spark in gas near a surface of condensed matter, are presented. The laser spark was initialed by the focusing of a 0.5 J 8 ns Nd: YAG laser. The fireball cooling rate was studied by using a fast frame camera and monochromatic imaging. A theoretical model is developed to describe the conducove-advective cooling stage. The model is reduced to a single nonlinear temperature diffusion equation. In the spherically symmetric case, a similarity solution found earlier is verified and employed for interpreting the experimental results.

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On the cooling of the plasma fireball produced by a laser spark in front of liquids and solids

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