Bykhun, A., Gladkikh, P., Karnaukhov, I., Lyashchenko, V., Mytsykov, A., Ridozub, V., Selivanov, V., Stomin, V., Tertychnyj, A., Ushakov, I. and Zelinsky, A. 2023. Reactivity Measurement Methods and the First Results of the Physical Start-up for the Nuclear Subcritical Facility “Neutron Source”. Ukrainian Journal of Physics. 68, 3 (May 2023), 147. DOI:https://doi.org/10.15407/ujpe68.3.147.