1. Department of Applied Mathematics and Computer ScienceBelarusian State University Independence Ave. 4 220030 Minsk Belarus
2. Laboratory of Radiation EffectsScientific-Practical Materials Research Centre of NAS of Belarus P. Browka Str. 17 220072 Minsk Belarus
3. Institute of Photonics and NanotechnologyVilnius University Sauletekio Av. 3 LT-10257 Vilnius Lithuania
4. Department of Experimental PhysicsPeter the Great St. Petersburg State Polytechnic University 195251 St. Petersburg Russia
5. EP DepartmentCERN CH-1211 Geneva 23 Switzerland
6. Department of Multifunctional Materials and StructuresNational Institute of Materials Physics Atomistilor Str. 405A Bucharest-Magurele 077125 Romania