Contribution of the E2 transitions to the opacity of hot and dense plasmas of heavy elements by an average-atom approach.
The contribution of electric quadrupole (E2) transitions to the opacity of hot and dense plasmas is taken into account by using an average-atom model. As an example, the increase of the opacity of Au due to the E2 transition is shown to range from less than 1% to more than 10% depending on density and temperature. It reaches 15% when the density and temperature are, respectively, 100 g/cm(3) and 5000 eV. The most significant influence comes from the E2 photoionization processes.
Department of Applied Physics, National University of Defense Technology, Changsha 410073, People's Republic of China.
Jinsong
J
Miao
Jianmin
J
Yuan