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Reference sources
Volumetric and point radionuclide sources.



Reference measure of radionuclide activity are used to calibrate, verify and control the metrological characteristics of gamma, beta spectrometers and gamma, beta radiometers during their tests, as well as to evaluate and control errors in the certification of methods for measuring the activity of radionuclides, to control the quality of measurements and in the inspection testing of the activities of measuring laboratories.


Reference source is a standardized metal, glass or plastic container filled a prepared dry radioactive material. Containers for source are unified in volume and shape: Marinelli vessels with a volume of 0.5 and 1.0 L, cuvettes with a volume of 0.005 to 1.0 L, Petri dishes with a diameter of 40 to 100 mm, polyethylene bottles and others (at the request of the сustomer). Reference radionuclide solutions are used as the radioactive base of the filled material.

As fillers for containers of reference sources can be used: silica sand ranging in size from 0.4 to 1.0 mm, ion exchange resin, sawdust, charcoal, izolon, silica gel, filter paper and others materials.

To ensure radiation safety and exclude the possibility of environmental contamination by radioactive substances during the transportation, operation and storage of sources, it is necessary to comply with the requirements of regulatory documents and radiation safety standards.

The delivery set includes a passport and a calibration certificate.


Typical radionuclides available for order:  Cs-137, Sr-90+Y-90, Co-60, Eu-152, Am-241, Ra-226, Th-232

Typical density:  0.2,  1.0,  1.8 g/sm^3

Typical containers:  Marinelli 1L, vessel 250ml, cuvette 38ml, point

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