Liquid scintillation spectrometer survey 155Eu liquid activity

In the countrywide contrasting survey of 155Eu activity, 155Eu liquid activity was determined for the first time through using liquid scintillation spectrometer survey 155Eu β ray. In survey total uncertainty, determining activity accord with determining activity average value of all a wide variety of survey instrument entering into contrasting survey. But using liquid scintillation spectrometer survey, it is simple and save time, is beyond compare for other survey method. It indicate liquid scintillation spectrometer survey β-γ nuclide activity is effective as well