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Measuring the activity of radionuclides is one of the most popular directions in the field of ionizing radiation measurements. The fact that ensuring the unity and reliability of measurements of the activity of radionuclides is the most important task is obvious. Radionuclide sources of ionizing radiation for metrological purposes are necessary for the calibration and graduation of radiometers and spectrometers and are also used as control sources. VNIIFTRI develops and manufactures various types of metrological sources: point sources, surface sources, simulators of radioactively contaminated environmental objects, which, in turn, are divided into solid-state and bulk sources. The use of these sources avoids a significant increase in the error of measuring instruments.

journal of physics. conference series

Possibilities of FSUE “VNIIFTRI” for the manufacture and calibration of special measures of radionuclide activity for metrological support of measurements of radionuclide activity during radiation monitoring