1. Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
2. Institute of Scintillation Materials, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
3. Faculty of Mechanics and Mathematics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
4. Faculty of Information Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine