This article is cited in 1 paper

PLASMA, HYDRO- AND GAS DYNAMICS

Characteristics of “dust” fluxes from the surface of copper and lead liners exposed to one or two successive shock waves

V. A. Ogorodnikov, S. V. Erunov, K. N. Panov, E. A. Chudakov, I. A. Blinov, A. B. Georgievskaya, D. N. Zamyslov, I. R. Farin

Alekseev State Technical University of Nizhny Novgorod, Nizhny Novgorod, 603155 Russia

Abstract: Comparative experimental studies of the shock-induced particle ejection (“dusting”) from the free rough (Rz20) surface of copper and lead liners exposed to one or two successive shock waves separated in time by 0.2 $\mu$s have been carried out for the first time. This situation usually occurs in cumulative systems for the compression of the plasma by cylindrical or spherical liners shock or quasi-isentropically accelerated by explosion products. Using pulsed X-ray diffraction, laser optical recording, piezoelectric pressure sensors, and heterodyne interferometry, a qualitative picture has been studied and the quantitative characteristics of particle ejection from the free surface such as the velocities of the free surface and the particle flux front and the density (mass) distribution of particle flux in the direction of its motion, which are necessary for more accurate determination of features and the development of more appropriate models of the effect, have been evaluated.

Received: 10.03.2023
Revised: 12.04.2023
Accepted: 18.04.2023

DOI: 10.31857/S1234567823100063

 English version: Journal of Experimental and Theoretical Physics Letters, 2023, 117:10, 747–754