1. Institute of Physics AS CR; Cukrovarnicka 10 16253 Prague Czech Republic
2. Department of Dosimetry and Application of Ionizing Radiation; Faculty of Nuclear Sciences and Physical Engineering; Czech Technical University in Prague; Brehova 7 11519 Prague 1 Czech Republic
3. Division of Magentooptics; Faculty of Mathematics and Physics; Charles University; Ke Karlovu 5 12116 Prague 2 Czech Republic
4. Department of Natural Sciences; Faculty of Biomedical Engineering; Czech Technical University in Prague; Nám. Sítná 3105 27201 Kladno Czech Republic