METHOD FOR CONTROL OF MATERIALS FOR CONTENT OF f-ELEMENTS WITHOUT DISTURBANCE OF THEIR STRUCTURE AND COMPOSITION Russian patent published in 2010 - IPC G01N27/76 

FIELD: measurement equipment.

SUBSTANCE: method for control of materials for content of f-elements without disturbance of their structure and composition is related to investigation of substance properties, and may be used, for instance in nuclear industry enterprises and their related spheres of activity, when it is required to detect availability of materials, for instance fission ones, by contactfree method, without opening of package or container, where they are stored. In order to increase efficiency of control without direct contact with investigated material, reference and current parametres are detected, and results of comparison are used to detect availability of f-element in object of investigation, at the same time reference and current parametres are represented by frequencies of oscillations of investigated object response to applied mechanical (vibration or pulse) actions, besides in process of reference parametres detection, values are picked up from object of investigation directly prior to its exposure to magnetic field, and in process of current parametres detection, values are picked up during investigated object exposure to magnetic field.

EFFECT: improved efficiency of measurement method.

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