Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Masking and unmasking effects in control object local inclusions under customs inspection Nedavniy O.I., Osipov S.P., Kas’yanov S.V. The article cites the proving of statements in field of chemical composition determination by means of analysis the radiographic shaded images in local inclusions under customs inspection. The analytic equation estimating the identification parameter for case when local inclusion has a random location in control object is deduced. The general recommendations for selection the energy lines of gamma radiation are given. Контактный телефон (3822) 72-70-19. E-mail: osip1809@rambler.ru