Abstract
Using steel slag and two types of (soft and hard) iron slags, ten samples were prepared. Different gamma radiation interaction parameters were computed theoretically and measured experimentally at different energies: 60 keV, 136 keV, 662 keV, 1173 keV and 1332 keV in low and medium energy range using narrow transmission geometry. It has been observed that shielding effectiveness of a sample is inversely proportional to Half Value Layer (HVL). The obtained results were compared with Pure Flyash and it was observed that slag is better aggregate than flyash in shielding radiation as well as in construction applications. The results have been presented in the form of tables and graphs with more useful conclusions.
Highlights
Gamma radiation interaction is the most accurate, convenient and a non destructive method of determining the various characteristics of the material
Steel slag is taken from Modern Steel plant, situated at Mandi Gobindgarh whereas Iron slags have been collected from factories situated in local industrial area of Patiala
The incident (Io) and transmitted (I) y-ray intensities have been measured for experimentally determining the values of mass attenuation coefficients of specimens
Summary
Gamma radiation interaction is the most accurate, convenient and a non destructive method of determining the various characteristics of the material. Mass attenuation coefficient [2]-[9] is the basic parameter for understanding the gamma ray interaction with matter. It gives fraction of the energy scattered or absorbed due to interaction with matter. Effective atomic number (Zeff) is another useful important parameter for a composite material. Electron density (electron/g) and half value layer (HVL) are two other useful parameters for understanding the interaction of gamma ray. Where w i and (μ ρ) I are weight fraction and mass attenuation coefficient, respectively, of the constituent element i This is another important parameter for the interpretation of attenuation of radiation by composite materials.
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