Analysis of E3 Transitions in Ag-like High-Z Ions Observed with the NIST EBIT

oleh: Endre Takacs, Dipti, David S. La Mantia, Yang Yang, Adam Hosier, Aung Naing, Paul Szypryt, Hunter Staiger, Joseph N. Tan, Yuri Ralchenko

Format: Article
Diterbitkan: MDPI AG 2023-03-01

Deskripsi

We report measurements and identification of the E3 4f<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mrow><mn>7</mn><mo>/</mo><mn>2</mn><mo>,</mo><mn>5</mn><mo>/</mo><mn>2</mn></mrow></msub></semantics></math></inline-formula>-5s<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></semantics></math></inline-formula> transitions and E1 allowed transitions in Ag-like W (Z = 74), Re (Z = 75), and Ir (Z = 77). The spectra were recorded at the NIST EBIT using a grazing-incidence EUV spectrometer. The present measured wavelengths and theoretical predictions using GRASP2K calculations confirm previous observations of the same E3 transitions in Ag-like W. Our collisional–radiative model using the NOMAD code offers an insight into the population kinematics for Ag-like ions of heavy elements. We discuss the observed spectra and comparisons of the measured and simulated spectral lines.