ALPHA-gamma spectrometry apparatus for determining the number of nuclei alpha-activity isotopes with known characteristics of alpha decay

摘要

TECHNICAL FIELD: The invention relates to a measuring technique in the field of nuclear physics, in particular to alpha-spectrometry installations designed to measure the amount of nuclei alpha-active isotope with known characteristics of alpha decay under conditions where the characteristic of the measured isotope alpha radiation is not It can be spectrally isolated in hardware spectra recorded alpha-spectrometer. Summary of the utility model: in contrast to the known alpha-spectrometric installation to determine the number of nuclei alpha-active isotope-based circuit comprising channel registration of alpha particles spectrometric detector of alpha particles in the proposed installation diagram supplemented passage of gamma-ray quanta with spectrometric gamma detector, alpha- and gamma-registration channels are combined in a coincidence circuit, enabling a alpha-channel control signal to the gamma detector for spectrum al a-particles produced which is correlated in time with the birth of detected gamma rays. The technical result consists in providing the possibility of measuring the number of nuclei alpha-active isotope with known alpha decay characteristics under conditions where the characteristic of the measured isotope alpha radiation can not be allocated in hardware spectrally spectra recorded by the spectrometer alpha; and to reduce the sensitivity threshold alpha spectrometric method "weighting."