Research on Backscatter Peak Measurement Based on CSS-D-60 Type γ Spectrometer

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.