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Efficiency of laser initiation and absorption spectra of PETN

  • Combustion, Explosion, and Shock Waves
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Abstract

A comparative study of the efficiency of the laser initiation of PETN by the first and second harmonics (1060 and 530 nm) of a neodymium-doped phosphate glass laser was performed. A significant difference in the efficiency of PETN initiation by the different harmonics was revealed: as the initial temperature of the sample increased from 373 to 450 K, the threshold initiation fluence decreased from 3.0 to 0.5 J/cm2; at the same time, the second harmonic failed to initiate PETN even at a fluence of 10 J/cm2. The absorption spectrum of PETN was found to have a weak absorption band with a maximum at λ m = 1020 nm. It was assumed that the high efficiency of initiation by the first harmonic is associated with light absorption (photo-initiation) by this band

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Authors and Affiliations

  1. Kemerovo State University, Kemerovo, 650043, Russia

    E. D. Aluker, A. G. Krechetov & A. V. Tupitsyn

  2. Zababakhin Russian Federal Nuclear Center, All-Russia Research Institute of Technical Physics, Snezhinsk, Russia

    B. G. Loboiko & V. P. Filin

  3. Kemerovo Department of the Institute of Solid-State Chemistry and Mechanochemistry, Siberian Division, Russian Academy of Sciences, Kemerovo, 650699, Russia

    N. L. Aluker, G. M. Belokurov & D. R. Nurmukhametov

Authors
  1. E. D. Aluker
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  2. N. L. Aluker
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  3. G. M. Belokurov
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  4. A. G. Krechetov
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  5. B. G. Loboiko
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  6. D. R. Nurmukhametov
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  7. A. V. Tupitsyn
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  8. V. P. Filin
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Correspondence to E. D. Aluker.

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Original Russian Text © E.D. Aluker, N.L. Aluker, G.M. Belokurov, A.G. Krechetov, B.G. Loboiko, D.R. Nurmukhametov, A.V. Tupitsyn, V.P. Filin, 2010, published in Khimicheskaya Fizika, 2010, Vol. 29, No. 1, pp. 49–52.

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Aluker, E.D., Aluker, N.L., Belokurov, G.M. et al. Efficiency of laser initiation and absorption spectra of PETN. Russ. J. Phys. Chem. B 4, 63–65 (2010). https://doi.org/10.1134/S1990793110010094

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  • DOI: https://doi.org/10.1134/S1990793110010094

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