Effect of Volume Compression on Laser Pulse Initiation Thresholds of Energetic Materials

Energy thresholds of laser pulse initiation and kinetic characteristics of explosive decomposition of heavy metal azides (HMA), including pentaerythritol tetranitrate (PETN) and furazanotetrazine dioxide (FTDO), have been studied at different pressures of uniform compression. Samples were excited by...

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Bibliographic Details
Published in:Russian physics journal 2023-06, Vol.66 (2), p.166-171
Main Authors: Tsipilev, V. P., Oleshko, V. I., Yakovlev, A. N., Forat, E. V., Grechkina, T. V.
Format: Article
Language:English
Subjects:
Analysis
Condensed Matter Physics
Energetic materials
Hadrons
Heavy Ions
Heavy metals
Lasers
Magnetic alloys
Mathematical and Computational Physics
Neodymium lasers
Nuclear Physics
Optical Devices
Optics
PETN
Photonics
Physics
Physics and Astronomy
Polyols
Pulse duration
Pulsed lasers
Theoretical
Thresholds
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Summary:Energy thresholds of laser pulse initiation and kinetic characteristics of explosive decomposition of heavy metal azides (HMA), including pentaerythritol tetranitrate (PETN) and furazanotetrazine dioxide (FTDO), have been studied at different pressures of uniform compression. Samples were excited by the first harmonic of the neodymium laser (λ = 1064 nm) with the actuating pulse duration τ = 14 ns. It has been established that the sensitivity of energetic materials (EM) to the pulsed laser action increases monotonically with the pressure. Experimental results are interpreted within the framework of the hot microspot ignition theory based on the features of gas-dynamic unloading from the volume of hot spots.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-023-02921-4