Application of multiple scattering theory to Doppler velocimetry of ejecta from shock-loaded samples

Kondratev, A. N.; Andriyash, A. V.; Kuratov, S E; Rogozkin, D. B.

doi:10.1016/j.jqsrt.2020.106925

Cited by 7 publications

(12 citation statements)

References 36 publications

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“…For m 0 = 2 mg/cm 2 , the original peak disappears and the spectrum again exhibits a single peak. The doublepeak spectrum has been observed in previous experiments 19,37 and simulations, 25,38 and is the result of the direct exposure of incident light at the free surface.…”

Section: Interpretation Of Pdv Spectrum a Influence Of Ejecta Parameterssupporting

confidence: 58%

“…10,11 Many experimental approaches have attempted to measure the ejection production, such as the Asay foil, 3,12 foam recovery, 13 piezoelectric probes, 4,14 Fraunhofer holography, 15,16 X-ray/proton radiography, 2,17 Mie scattering, 17,18 , and photon Doppler velocimetry (PDV). [19][20][21][22][23][24][25] The main quantities of interest are the particles' velocity, diameter, and total area mass. Most approaches can only measure some of these ejecta parameters.…”

Section: Introductionmentioning

confidence: 99%

“…However, in realworld conditions, these approaches are hard to apply simultaneously because of limitations on the experimental space or configuration. Recently, PDV has attracted considerable attention 21,22,25 owing to its ability to recover the total area mass and the distributions of particle velocity and diameter at the same time. In addition, the light path of PDV is rather concise and its application is convenient.…”

Section: Introductionmentioning

confidence: 99%

“…Fedorov et al 24 discussed the influence of different particle sizes on the spectrogram boundary in further detail. Recently, Franzkowiak et al 22 and Andriyash et al 21,25 reconstructed the light field of ejecta and obtained the simulated PDV spectrum using single-and multiple-scattering theory, respectively. They varied the particles' parameters and fitted the simulated PDV spectrum to the experimental data.…”

Section: Introductionmentioning

confidence: 99%

“…Franzkowaik et al 22 and Andriyash et al 21,25 proposed similar approaches for recovering the ejecta parameters from the PDV spectrum through reconstruction and then fitting. However, some assumptions were introduced in the reconstruction of the light field.…”

Section: Introductionmentioning

confidence: 99%

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Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Shi,

Ma,

Dang

et al. 2020

Preprint

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The photon Doppler velocimetry (PDV) spectrum is investigated in an attempt to reveal the particle parameters of ejecta from shock-loaded samples in a vacuum. A GPU-accelerated Monte-Carlo algorithm, which considers the multiplescattering effects of light, is applied to reconstruct the light field of the ejecta and simulate the corresponding PDV spectrum. The influence of the velocity profile, total area mass, and particle size of the ejecta on the simulated spectra is discussed qualitatively. To facilitate a quantitative discussion, a novel theoretical optical model is proposed in which the single-scattering assumption is applied. With this model, the relationships between the particle parameters of ejecta and the peak information of the PDV spectrum are derived, enabling direct extraction of the particle parameters from the PDV spectrum. The values of the ejecta parameters estimated from the experimental spectrum are in good agreement with those measured by a piezoelectric probe.

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Section: Interpretation Of Pdv Spectrum a Influence Of Ejecta Parameterssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Shi,

Ma,

Dang

et al. 2020

Preprint

View full text Add to dashboard Cite

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Reconstruction of ejecta field based on photon Doppler velocimetry from shock-loaded samples in vacuum

Shi

Dang

et al. 2022

Journal of Quantitative Spectroscopy and Radiative Transfer

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Simultaneous application of photon Doppler velocimetry and coherent backscattering for probing ejecta from shock-loaded samples

Andriyash

Исмаилов

Kamenev

et al. 2022

Journal of Applied Physics

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We present the results of experiments on simultaneous probing of a shock-loaded layer of aluminum oxide particles by the methods of photon Doppler velocimetry (PDV) and coherent backscattering (CBS). The measurements of the angular profiles of CBS from a dynamically expanding medium are reported for the first time. The powder of particles was applied to the surface of an explosively driven steel plate. The particle velocities ranged from [Formula: see text] to [Formula: see text] km/s. The main characteristics of the cloud of ejected particles (the areal density, mass–velocity distribution, etc.) are recovered from the PDV and CBS probing data using an approach based on theoretical modeling of the measurement results with the transport equation. By varying the parameters of the particle cloud (the transport optical thickness and the parameters of the initial velocity distribution), it is managed to fit the dynamics of the calculated Doppler spectra and CBS angular profiles to the data of measurements in given time intervals and, thereby, recover the values of these parameters. As applied to the diagnostics of ejecta from shock-loaded samples, the CBS method is shown to provide independent data on the spatial distribution of particles over the cloud thickness. The presented results demonstrate that the joint application of PDV- and CBS-based channels of measurements to ejecta diagnostics makes it possible to halve the error in recovering the ejecta parameters compared to using PDV alone.

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Application of multiple scattering theory to Doppler velocimetry of ejecta from shock-loaded samples

Cited by 7 publications

References 36 publications

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Reconstruction and interpretation of photon Doppler velocimetry spectrum for ejecta particles from shock-loaded sample in vacuum

Reconstruction of ejecta field based on photon Doppler velocimetry from shock-loaded samples in vacuum

Simultaneous application of photon Doppler velocimetry and coherent backscattering for probing ejecta from shock-loaded samples

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