A study of the porosity of porcelain with a scanning microscope

Universal scaling of resonances in vector correlation photoionization parameters

“…Only for the particular case of a single final ion state, it was predicted for the anisotropy parameter β and the spin polarization of photoelectrons in [22].…”

“…Equations ( 12) and ( 13) have been presented in an equivalent form in [22,23]. They provide us with a new method of determining the Fano parameters q and ρ 2 by studying the scaling factors χ and the energy shifts .…”

“…For nearly symmetric Lorentzian-like resonances (|q| 1) the ratio / and the scaling factor χ can be much larger. For example, calculations [22] predict ˜ 120 meV (χ 100) for the Na 2p 5 3s 2 2 P 1/2,3/2 autoionizing states with q ∼ 300. The 'switch over' was also predicted for the resonances in the angular anisotropy parameters of the fluorescence after dielectronic recombination into the excited states of He [23].…”

“…To our knowledge, this effect has not been pointed out before. Particular cases of the above regularity have been discussed in [22,23] for the angular anisotropy and polarization of photoelectrons and for the angular distribution of fluorescence in the dielectronic recombination.…”