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

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, , Citation J R Danielson et al 2014 J. Phys.: Conf. Ser. 500 142008 DOI 10.1088/1742-6596/500/14/142008

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1 Los Alamos National Laboratory, Physics, Los Alamos, NM 87545, USA

2 National Security Technologies, Las Vegas, NV 89030, USA

3 National Security Technologies, Los Alamos, NM 87544, USA

4 Los Alamos National Laboratory, Weapons Experiments, Los Alamos, NM 87545, USA

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1742-6596/500/14/142008

Abstract

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.

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10.1088/1742-6596/500/14/142008