Physics Of Plasmas
A technique has been developed for studying the time-dependent, local physical conditions in ablator samples in an inertial confinement fusion(ICF)hohlraum environment. This technique involves backlit point-projection absorption spectroscopy of thin tracer layers buried in the interior of solid samples mounted on laser-driven hohlraums. It is shown how detailed view-factor, atomic, hydrodynamics, and radiation-transport modeling can be used to infer time-dependent physical conditions in the interiors of these samples from the observed absorption spectra. This modeling is applied to the results of an experimental campaign on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] designed to compare radiation-wave velocities in doped and undoped ICF ablator materials.
45th Annual Meeting Of The Division Of Plasma Physics Of The American Physical Society
October 27-31, 2003
David H. Cohen; J. J. MacFarlane; P. Jaanimagi; O. L. Landen; D. A. Haynes; David Scott Conners , '03; Katherine Lenore Penrose , '04; and Nathan Cooper Shupe , '05.
"Tracer Spectroscopy Diagnostics Of Doped Ablators In Inertial Confinement Fusion Experiments On Omega".
Physics Of Plasmas.