“…In this context, the steady trend of the development of neutron imaging instrumentation on reconstructed or updated nuclear reactors should be noted. As an example, the new well-advanced neutron imaging facilities on the IR-8 reactor (Moscow, Russia) [11], BRR reactor (Budapest, Hungary) [12], WWR-K research reactor (Almaty, Republic of Kazakhstan) [13,14], LVR-15 reactor (Rez, Czech republic) [15], NCNR reactor (Gaithersburg, USA) [16] and IBR-2 high-flux pulsed reactor (Dubna, Russia) [17,18] are being put into operation. One of the features of these neutron facilities is using a collimator system that forms a neutron beam for radiography and tomography experiments.…”