Abstract
Germanium may be used as a possible dopant in the ablator of inertial confinement fusion ignition targets, the knowledge of its opacity is crucial. We have calculated the opacity by two approaches: 1) a detailed line calculation is used in which the atomic database is provided by the MCDF code. A line shape code was adapted to perform the calculation of opacity profile, which leads to a prohibitively long calculation time when the number of lines is large. 2) to alleviate the computationally burden a second approach, combining detailed line calculations and statistical calculations is used. The latter approach requires much smaller calculation times than the first approach and is well suited for extensive calculations. The monochromatic opacity and the Rosseland and Planck mean opacities are calculated for various relevant densities and temperatures.
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