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A light-erosion method for high-pressure dust-gas-plasma flows generation

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Abstract

A light-erosion method for generating high-pressure dust-gas-plasma flows during ultraviolet (λ = 213 nm) laser ablation of a polymeric matrix ((C2F4) n ) containing dust particles (thin-wall borosilicate glass microspheres with a ∼15- to 80-μm diameter d) is described. The carrying-out of the dust particles by ionized vapors of the substance of the target matrix, their space-time localization in the gas-plasma flow in a period Δτ ∼ 15–75 μs after the laser exposure up to the further spatial separation of the vaporized substance of the target matrix and the dust particle cloud is recorded by laser interferometry and shadow photography methods. The importance of certain selection of the matrix-dust system for realizing the light-erosion method for generating dust-gas-plasma flows, in particular laser exposure conditions, is shown. When condensed media with a low ionization potential (Al, Ce) are used as a dust component, the proposed method for generating heterogeneous gas-plasma flows can be efficient for their further heating by coherent radiation.

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Authors and Affiliations

  1. Bauman Moscow State Technical University, ul. Vtoraya Baumanskaya 5, Moscow, 105005, Russia

    E. Yu. Loktionov & Yu. Yu. Protasov

Authors
  1. E. Yu. Loktionov
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  2. Yu. Yu. Protasov
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Correspondence to E. Yu. Loktionov.

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Original Russian Text © E.Yu. Loktionov, Yu.Yu. Protasov, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 4, pp. 145–149.

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Loktionov, E.Y., Protasov, Y.Y. A light-erosion method for high-pressure dust-gas-plasma flows generation. Instrum Exp Tech 53, 601–606 (2010). https://doi.org/10.1134/S0020441210040238

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  • DOI: https://doi.org/10.1134/S0020441210040238

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