Wavelengths of the Ni-like x-ray laser line
Physical Review A, 1998•APS
We measure the wavelengths of the Ni-like 3 d 9 4 d 1 S 0–3 d 9 4 p 1 P 1 x-ray laser line in
several low-Z Ni-like ions ranging from Y (Z= 39) to Cd (Z= 48). These wavelengths are
compared with optimized level calculations using a multiconfiguration Dirac-Fock code. With
the help of these results, we identify this line to very high accuracy in nonlasing plasmas
from As (Z= 33) to Mo (Z= 42). Accurate values of these wavelengths are essential for
performing plasma imaging and interferometry experiments with multilayer optics that use …
several low-Z Ni-like ions ranging from Y (Z= 39) to Cd (Z= 48). These wavelengths are
compared with optimized level calculations using a multiconfiguration Dirac-Fock code. With
the help of these results, we identify this line to very high accuracy in nonlasing plasmas
from As (Z= 33) to Mo (Z= 42). Accurate values of these wavelengths are essential for
performing plasma imaging and interferometry experiments with multilayer optics that use …
Abstract
We measure the wavelengths of the Ni-like 3 d 9 4 d 1 S 0–3 d 9 4 p 1 P 1 x-ray laser line in several low-Z Ni-like ions ranging from Y (Z= 39) to Cd (Z= 48). These wavelengths are compared with optimized level calculations using a multiconfiguration Dirac-Fock code. With the help of these results, we identify this line to very high accuracy in nonlasing plasmas from As (Z= 33) to Mo (Z= 42). Accurate values of these wavelengths are essential for performing plasma imaging and interferometry experiments with multilayer optics that use the x-ray laser to backlight other plasmas. These results also provide important atomic data that are currently missing about the energy of the 4 d 1 S 0 level in the Ni I sequence.
American Physical Society