Method for measurement of radioactivity sup14C with the elimination of component counts derived from the products of gradual decay sup222Rn by liquid scintillation spectrometry/sup/sup

摘要

method of rapid measurement of radioactivity isotope 14c with the store zliczeu0144 originating from 222rn and its degradation products successively by spectrometry cieku0142oscyntylacyjnej is that detected pulses from the dpm pairs 214bi and 214po by registration unit oczeu015bnie times between consecutive pulses and their amplitudeand then analyzes the time between pulses of amplitudach above 160 kev, for normal couples adopt steam pulse detection pulses occurring during the degradation half-life times below 10 214bi, preferably below 800 u00b5s, and then counts the such high tu0105pienia pairs of pulses, whereby kau017cdorazowa detection pulse pairs is treated as a trace of the 222rn.