Experimental determination of radiation absorption coefficients for gamma radiation in various metals using the Na-I script detector system.
DOI:
https://doi.org/10.56294/saludcyt20262550Keywords:
Radiation absorption coefficient, Gamma radiation, Na-I scintillation detectorAbstract
Introduction:
The radiation absorption coefficient (µ) is a critical parameter for accurately calculating safe shielding requirements against radiation exposure. This coefficient is influenced by the type and energy of the radiation, as well as the nature and density of the shielding material. Determining this value for candidate materials is essential for safety protection applications.
Method:
This study focused on experimentally determining the linear absorption coefficient (µ) of three common shielding materials: copper (Cu), lead (Pb), and aluminum (Al). The measurements were conducted using gamma radiation emitted from Cesium-137 (Cs-137) and Cobalt-60 (Co-60) radioactive sources. Na-I scintillation detector counting system was employed to measure the attenuation of the gamma rays as they passed through the material samples.
Results:
The experimental results for the radiation absorption coefficients of copper, lead, and aluminum for the specified gamma energies were obtained. These measured values demonstrated consistency with previously published and documented results for the same materials and energy ranges.
Conclusions:
The findings confirm the reliability of the experimental methodology and the importance of these determined absorption coefficients for designing effective radiation shielding. The established µ values for Cu, Pb, and Al can be confidently used in safety calculations against exposure to Cs-137 and Co-60 gamma radiation.
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