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The study investigated the maximum range of  90 Sr- 90 Y sources in different shielding materials and assessed β-directional dose equivalent rates and γ ambient dose equivalent rates across varying thicknesses of shielding. Results indicated: (1) Significant differences in  90 Sr- 90 Y source ranges among materials, with the shortest β-ray range observed in tungsten alloy (0.00 to 0.50 mm) and high-purity lead (0.5 to 1.0 mm). (2) Generally, there was good agreement between experimental and simulation data, except at a thickness of 0.5 mm for high-purity lead, where a deviation of 51.4 per cent in β-directional dose rates was observed, likely due to errors in the lead cross-section data. (3) Comparative analysis demonstrated that combinations such as “304 + W” or “304 + Pb” offer enhanced shielding effectiveness against  90 Sr- 90 Y sources. This study provides valuable insights for selecting β-radiation shielding materials and structures.

Experimental testing and simulation analysis of radiation shielding performance of 90 SR- 90 Y radiation sources using different materials