Coster-Kronig widths

As seen in Table 2, for those solutions which occur outside the gCK continuum the width is quite small, being determined by the much weaker Coster-Kronig and Auger processes. For a number of elements we have included the dipole parts of the following Coster-Kronig fluctuation and decay processes ... 

Fig, 5a. Calculated total natural widths F and partial natural widths F (inverse lifetime of the radiative decays), Ta (inverse lifetime of the Auger processes) and Fq (inverse lifetime of the Coster-Kronig processes) of K, Lj, Lji in, Mj and Mum levels for Z = 40-80 (from Keski-Rahkonen and Krause 1974). 

What we call level width is the energy directly related to the lifetime of a single hole in an electronic shell of an atom by the Heisenberg relation F x=h we can write F=h S where S is the sum of all the transition rates due to radiative. Auger and Coster-Kronig processes that cooperate to fill the hole. 

We recall that the total natural width F is the sum of radiative and nonradiative widths due to Auger and Coster-Kronig processes. 

Theoretical treatments as well as experimental values of widths, decay rates. Auger and Coster-Kronig yields relating to lines or levels and eventually line-intensity ratios... 

---