TY CONF TI METHODS OF DEFINING THE NUCLEUS NECK RADIUS AT THE POINT OF RUPTURE KW nuclear fission KW nucleus neck radius KW spin distribution KW cold fission KW fragment deformation JO PHYSICAL BASIS OF SCIENCE-INTENSIVE TECHNOLOGIES IN THE MODERN WORLD AU Titova, L.V. AU Lyubashevskiy, D.E. AU Klyuchnikov, S.V. AU Kostryukov, P.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov