论文部分内容阅读
The spectra of heavy ions are of great interest to various application fields.For example,the radiations from tungsten ions can be used in spectroscopic diagnostics for determining ITER plasma parameters [1].However,the spectra of the heavy ions which still have plenty of electrons are not generally studied.For Samarium-like ions,only the ground-state configurations are presented in the NIST database,except for the low-charged ions Eu+,Gd2+ and Tb3+.The ground state is [Kr]4d104f145s21S0 for W12+ and heavier ions [2].