Abstract
The electronic and nuclear magnetization, as well as the «polarization ratio» are computed for an alkali beam submitted to optical pumping as functions of a parameter, which is simply related to the mean number of photons absorbed by each atom before leaving the illuminated region, and which is very easy to compute, once the characteristics of the particular beam concerned are known. The numerical results are presented for illumination withD1 andD2 lines and for both together, up to 5 absorbed photons per each atom, for the isotopes6Li,7Li,23Na,39K,85Rb,87Rb,133Cs. A recent review of hfs data for these isotopes is also included, and some new data for lithium are computed.
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