Abstract
X-ray photoabsorption measurements of simultaneous two-electron transition in krypton were carried out using synchrotron radiation. A full spectrum involving all 1s+nl electrons was detected. Nonrelativistic Hartree-Fock and, in particular, relativistic, Dirac-Fock energy-level calculations are in good agreement with the data, as are those derived from the optical data of Rb in the z+1 approximation. The cross sections relative to that of the single 1s ionization are found to decrease with shell number, from 2.2% for 1s4p to 0.058% for 1s2s i.e., slower than predicted theoretically. No indications are found for a preferred Coster-Kronig decay mode over the radiative one for the 1sns levels.
Original language | English |
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Pages (from-to) | 5168-5170 |
Number of pages | 3 |
Journal | Physical Review A |
Volume | 34 |
Issue number | 6 |
DOIs | |
State | Published - 1986 |