Thomson Scattering in Inertial Confinement Fusion Research

Thomson scattering [1] using short-wavelength probe lasers [2] is the standard diagnostic to characterize high-density inertial confinement fusion (ICF) plasmas [3]. Its unique capability to measure plasma parameters such as temperatures, densities, plasma flow, and ionization stages with high accuracy together with possible measurements of plasma wave fluctuations is now widely recognized in the area of laser-produced plasma research. Initially, many basic Thomson scattering experiments with applications to ICF have been performed [4] on the Nova laser facility at the Lawrence Livermore National Laboratory that produced hot mm-scale plasmas with laser energies of up to 30 kJ. More recently, we have also begun to perform Thomson scattering experiments at a second large facility namely the Omega laser facility at the University of Rochester [5].

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