Unified Counting Channels in State Standards for Radionuclide Activity,Neutron Flux,and Neutron Flux Density

There is a program for upgrading the measuring equipment forming part of the State Primary Standards for the units of radionuclide activity, neutron flux, and neutron flux density, where it is planned to replace fifteen counting channels by various types of standardized channel of four types. These unified channels are considered for two primary standard-equipments, and their technical and metrological advantages are emphasized. Metrological characteristics are given for equipment containing the unified channels, which are compared with nonunified ones.