PHOTOABSORPTION IN HOT PLASMAS BASED ON THE ION-SPHERE AND ION-CORRELATION MODELS

In hot plasmas the theoretically predicted photoabsorption cross sections rest upon the electronic states predicted by the plasma model. We compare the theoretical photoabsorption based on two models, the ion-sphere model and the ion-correlation model. We discuss the underlying physics and present calculations for iron, aluminum, and bromine plasmas, and also for a mixture of 14 elements under conditions occurring below the convective region of the sun.