To explore the effectiveness and application of anti-Compton technology in γ spectrum measurements,an anti-Compton measurement study of uranium ore standards was conducted in the laboratory using the CSS-D-60 type anti-Compton γ spectrometer system.Specific measurements were taken for mixed uranium-thorium,uranium-radium equilibrium,and single thorium powder samples.The proportion distribution of Compton scattering photons in the measured spectrum in the energy range of 186-1847 keV for these various samples was obtained.The experimental results show that the proportion of anti-Compton correction data increases with energy,and the correction percentage at the 1001 keV energy peak,which is of interest in direct uranium measurement technology,exceeds 60%.The research results can provide important data references for the development of γ spectrum-based uranium measurement technology and equipment.
metrologyCompton scatteringγ spectrumanti-Compton effect1001 keV energy peakuranium measurement technology