“…In this point of view, the methods of element composition studies, such as the X‐ray fluorescence or neutron activation analysis (Bishop & Blackman, 2002; Koval et al, 2020), are attracted successfully (Dias & Prudencio, 2007). A lot of useful data has already been accumulated on the study of Bulgaria (Borzakov et al, 2022; Pulchev & Pristavova, 2021), old‐Russian pottery and frescoes (Panova et al, 2020), and ceramics from Romania and others (Bugoi et al, 2019; Burghelea et al, 2004; Ionescu et al, 2007). There has also been progress in the study of ceramic fragments by neutron structural nondestructive methods like neutron tomography and diffraction (Abdurakhimov et al, 2021; Kockelmann et al, 2001).…”