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Experimental Study of Laser Initiation of a Light-Sensitive Explosive Charge over a ≈1000 mm2Surface

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

This paper presents the results of a study of the initiation of explosive transformation of flat charges 40 mm in diameter and 5 mm thick, made of a low-density (\(\rho\) \(\approx\)0.9 g/cm3) light-sensitive explosive composition based on fine RDX and aluminum. It is shown that laser radiation (LR) can be used to initiate explosive transformation over a large area (\(\approx\)1 000 mm2) with a small time difference in the arrival of the detonation wave front. It is determined that at an LR energy density \(Q_\text{opt}\) = 10 J/cm2) over the entire LR spot on the charge surface, the time difference in the arrival of the detonation wave front at the rear surface of the charge is not more than 50 ns.

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Correspondence to N. P. Khokhlov.

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Translated from Fizika Goreniya i Vzryva, 2021, Vol. 57, No. 3, pp. 119–127.https://doi.org/10.15372/FGV20210312.

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Khokhlov, N.P., Pon’kin, N.A., Luk’yanenko, I.A. et al. Experimental Study of Laser Initiation of a Light-Sensitive Explosive Charge over a ≈1000 mm2Surface. Combust Explos Shock Waves 57, 364–371 (2021). https://doi.org/10.1134/S0010508221030126

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  • DOI: https://doi.org/10.1134/S0010508221030126

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