%0 Journal Article
%T Multiple-view spectrally resolved x-ray imaging observations of polar-direct-drive implosions on OMEGA
%A R. C. Mancini
%A H. M. Johns
%A T. Joshi
%A D. Mayes
%A T. Nagayama
%A S. C. Hsu
%A J. A. Baumgaertel
%A J. Cobble
%A N. S. Krasheninnikova
%A P. A. Bradley
%A P. Hakel
%A T. J. Murphy
%A M. J. Schmitt
%A R. C. Shah
%A I. L. Tregillis
%A F. J. Wysocki
%J Physics
%D 2014
%I arXiv
%R 10.1063/1.4903324
%X We present spatially, temporally, and spectrally resolved narrow- and broad-band x-ray images of polar-direct-drive (PDD) implosions on OMEGA. These self-emission images were obtained during the deceleration phase and bang time using several multiple monochromatic x-ray imaging instruments fielded along two or three quasi-orthogonal lines-of-sight including equatorial and polar views. The instruments recorded images based on K-shell lines from a titanium tracer located in the shell as well as continuum emission. These observations constitute the first such data obtained for PDD implosions. The image data show features attributed to zero-order hydrodynamics. Equatorial view synthetic images obtained from post-processing a 2D hydrodynamic simulation are consistent with the experimental observation. Polar view images show a pentagonal pattern that correlates with the PDD laser illumination used on OMEGA, thus revealing a 3D aspect of these experiments not previously observed.
%U http://arxiv.org/abs/1406.4490v1