Mass spectra and ionization efficiency curves

The observations described above and our interpretation of them suggest that the vapor composition at which up to three ytterbium-containing components (YbBr3, YbBr2, YbBr, and Yb) can simultaneously coexist is complex. The next stage of processing the primary data therefore involved separating the contributions to ion currents from different molecular precursors. 

Equations 3.7.9 and 3.7.10 are valid for each of the experimental points at stage I if one neglects the temperature dependence of/02 and/12. It can therefore be written for two points as  

Note /(Yb+, YbBr2) is the intensity of the current of Yb ions formed from YbBr molecule. The same Is true for the other cases. 

A system of the type shown in Equations 3.7.15 and 3.7.16 was devised for the experimental data on ion currents measured at different temperatures. Its solution resulted in the/03./13./23./02 fn values given in Table 3.7.1. These coefficients were used for calculating the total ion currents from the YbBr3 and YbBr2 

The contributions of YbBr molecules and Yb atoms to the total currents of YbBr and Yb were estimated using lECs. 

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