THE COMPOSITE STRUCTURES BASED ON NICKEL RODS IN THE MATRIX OF SILICON DIOXIDE FORMATION PECULIARITIES STUDY USING SYNCHROTRON XANES IN THE ELECTRONS AND PHOTONS YIELD REGISTRATION... by Parinova Elena V., Fedotov Aleksander K., Koyuda Dmitry A, Fedotova Julia A, Streltsov Eugene A., Malashchenok Nikolai V, Ovsyannikov Ruslan, Turishchev Sergey Yu