[1] Adam Mickiewicz Univ, Dept Macromol Phys, Krakow, Poland
[2] Jagiellonian Univ, SOLARIS Natl Synchrot Radiat Ctr, Krakow, Poland
[3] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland
[4] Elettra Sincrotrone, Trieste, Italy
[5] INFN LNF, Rome, Italy
[6] Rome Int Ctr Mat Sci Superstripes, Rome, Italy
[7] European Synchrot Radiat Facil, Grenoble, France