1. Diamond Light Source, Harwell Campus, Didcot, OX11 0DE, United Kingdom
2. Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, United Kingdom
3. Scientific-Technical and Educational Centre of Low Temperature Studies, I. Franko National University of Lviv, 50 Dragomanova Str., 79005, Lviv, Ukraine