Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Atomic radiative data such as excitation energies, transition wavelengths, radiative rates, and level lifetimes with high precision are the essential parameters for the abundance analysis, simulation, and diagnostics in fusion and astrophysical plasmas. In this work, we mainly focus on reviewing our two projects performed in the past decade. One is about the ions with Z■30 that are generally of astrophysical interest, and the other one is about the highly charged krypton(Z = 36)and tungsten(Z = ...     

Energy Levels and Transition Rates for Laser Cooling Os- and a General Approach to Produce Cold Atoms and Molecules

High-resolution photoelectron energy spectra of osmium anions are obtained using the slow-electron velocitymap imaging method.The energy levels of excited states ⁴F_7/2,⁴F_5/2and ⁴F_3/2of Os^- are determined to be 148.730(13),155.69(15),and 176.76(13) THz[or 4961.09(41),5193.4(49),and 5896.1(42) cm^-1],respectively.The lifetime of the opposite-parity excited state ⁶D^o_9/2 is determi...