%0 Journal Article %A Alexey A. Manushkin %A Nikolay N. Potrakhov %A Dmitrii K. Kostrin %A Karina K. Guk %T Phase-contrast method for determining the size of the effective focal spot of a nanofocus X-ray tube %J Nanosistemy: fizika, himiâ, matematika %D 2025 %P 5-13 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2025_16_1_a0/ %G en %F NANO_2025_16_1_a0