METHOD OF LIQUID-SCINTILLATION ALPHA-SPECTROMETRIC MEASUREMENT OF RADIO NUCLIDES

摘要

FIELD: liquid-scintillation alpha- spectrometry. SUBSTANCE: any radio nuclide is injected as marker into solution of liquid scintillator with radio nuclides isolated from analyzed sample to identify alpha- spectra of analyzed samples. Position of alpha-peak of it with reference to scale of amplitude analyzer is established by comparison of alpha-spectrum of sample with alpha-spectrum with marker, region of spectrum of sample experienced changes under effect of alpha-peak of radio nuclide of marker is determined. Alpha-spectra are resolved into components with use of obtained-before information on form of alpha- peaks, dependence of half-width of alpha-peaks on their positions in alpha-spectrum and dependence of relative positions of alpha-peaks of various determined radio nuclides and radio nuclide chosen as marker on energy of alpha-particles of determined radio nuclides. EFFECT: diminished error, provision for quantitative determination. 1 cl, 2 dwg