1. Sevchenko Research Institute of Applied Physical Problems; Belarusian State University; 7 Kurchatova St. 220045 Minsk Belarus
2. Department of Electrical Devices and High Voltage Technologies; Lublin University of Technology; 38a Nadbystrzycka St. 20-618 Lublin Poland
3. Instituto de Carboquimica (CSIC); 50018 Zaragoza Spain
4. Institute for Nuclear Problems; Belarusian State University; 11 Bobruiskaya St. 220030 Minsk Belarus
5. Al-Farabi Kazakh National University; 71 al-Farabi ave. 050040 Almaty Kazakhstan