ATOMIC ELECTRON-BINDING ENERGIES OF MULTIPLY CHARGED KRYPTON IONS BY INTERNAL-CONVERSION-ELECTRON SPECTROSCOPY

We determined electron binding energies from multiply charged Kr ions from internal-conversion-electron spectra for the 9.4-keV transition in Krm83. Because our radioactive source is a low-density gas, we can observe the electrons from ionic states produced by the vacancy cascade of the preceding highly converted transition. We report binding-energy shifts for the 2s, 3s, and 4s orbitals in the configuration of the atomic ground state. For charge state 7+, i.e., for Ni-like Kr and higher, we also observe the shifts from metastable states. © 1990 The American Physical Society.