Multiple-view spectrally resolved x-ray imaging observations of polar-direct-drive implosions on OMEGA
Abstract
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.
Keywords
Cite
@article{arxiv.1406.4490,
title = {Multiple-view spectrally resolved x-ray imaging observations of polar-direct-drive implosions on OMEGA},
author = {R. C. Mancini and H. M. Johns and T. Joshi and D. Mayes and T. Nagayama and S. C. Hsu and J. A. Baumgaertel and J. Cobble and N. S. Krasheninnikova and P. A. Bradley and P. Hakel and T. J. Murphy and M. J. Schmitt and R. C. Shah and I. L. Tregillis and F. J. Wysocki},
journal= {arXiv preprint arXiv:1406.4490},
year = {2014}
}
Comments
22 pages, 10 figures, submitted for publication