L-shell shake processes resulting from 1s photoionization in elements 11≤Z≤17 -: art. no. 062508

The photoinduced K alpha x-ray spectra of elements between sodium and chlorine were measured by means of high-resolution crystal diffractometry. The K alpha (1,2),L-(1) satellites were observed and resolved from the corresponding diagram lines. The probabilities for producing via shake processes (KL(1))-L-(1) double-hole states were deduced from the satellite to parent diagram line yield ratios. The results are compared to theoretical sudden approximation predictions. A satisfactory agreement is found except for sodium and chlorine for which our experimental results are markedly underestimated by the calculations.