State Primary Standard of Flux Units and Neutron Flux Densities
Reproduction and maintenance of flow unit and density of neutron flow.
Dissemination of flow unit and density of neutron flow to the working standards and working instruments of the measuring technology by means of the method of direct measurements or comparison with a help of comparator in accordance with DSTU 4022-2001 “Metrology. National verification scheme for measuring instruments of activity of flow unit and density of neutron flow”.
Metrological characteristics | ||
Range | from 1·103 s-1 to 1·108 s-1 (for neutron flux) from 1·104 s-1m-2 to 1·108 s-1m-2 (for neutron flux density) | |
Uncertainty by type A (uA) | (0,1–0,5) ·10-2 | |
Uncertainty by type B (uB) | (0,21–0,41) ·10-2 | |
Total standard uncertainty (uC) | (0,23–0,65) ·10-2 | |
Extended uncertainty (U) | (0,46–1,3) ·10-2 | |