Measurement of an explosively driven hemispherical shell using 96 points of optical velocimetry

18th APS-SCCM; 24th AIRAPT

Danielson, J.R.^1 ; Daykin, E.P.^2 ; Diaz, A.B.^3 ; Doty, D.L.^4 ; Frogget, B.C.^3 ; Furlanetto, M.R.^1 ; Gallegos, C.H.^3 ; Gibo, M.^2 ; Garza, A.^2 ; Holtkamp, D.B.^1 ; Hutchins, M.S.^2 ; Perez, C.^2 ; Peña, M.^2 ; Romero, V.T.^3 ; Shinas, M.A.^4 ; Teel, M.G.^3 ; Tabaka, L.J.^1

Los Alamos National Laboratory, Physics, Los Alamos

NM

87545, United States^1

National Security Technologies, Las Vegas

NV

89030, United States^2

National Security Technologies, Los Alamos

NM

87544, United States^3

Los Alamos National Laboratory, Weapons Experiments, Los Alamos

NM

87545, United States^4

关键词: Copper shell;    Hemispherical shells;    High explosives;    Optical probe;    Photonic doppler velocimetry;    Spatial correlations;    Surface motions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/14/142008/pdf
DOI  :  10.1088/1742-6596/500/14/142008

来源: IOP

【 摘 要 】

We report the measurement of the surface motion of a hemispherical copper shell driven by high explosives. This measurement was made using three 32 channel multiplexed photonic Doppler velocimetry (PDV) systems, in combination with a novel compound optical probe. Clearly visible are detailed features of the motion of the shell over time, enhanced by spatial correlation. Significant non-normal motion is apparent, and challenges in measuring such a geometry are discussed.