On the Use of Flyash-Lime-Gypsum (FaLG) Bricks in the storage facilities for low level Nuclear Waste
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In the present study, radiation shielding and protection ability of prepared Flyash-lime-Gypsum (FaLG)bricks has been studied in terms of energy exposure build up factors and dose parameters. The energyexposure build up factors of Flyash-lime-Gypsum (FaLG) bricks have been calculated for the energy rangeof 0.015 MeVe15 MeV and for penetration depth upto 40 mfp directly using a new and simplifiedPiecewise Linear Spline Interpolation Method (PLSIM). In this new method, the calculations of G.P fittingparameters are not required. The verification and accuracy of this new method has been checked bycomparing the results of exposure build up factor for NBS concrete calculated using present method withthe results obtained by using G.P fitting method. Further, the relative dose distribution and reducedexposure dose rate for various radioactive isotopes without any shielding material and with Flyash-limeGypsum (FaLG) bricks have been calculated in the energy range of 59.59e1332 keV. On the basis of theobtained results, it has been reported that the prepared Flyash-lime-Gypsum (FaLG) bricks possesssatisfactory radiation shielding properties and can be used as environmentally safe storage facilities forlow level nuclear waste
Abstract
In the present study, radiation shielding and protection ability of prepared Flyash-lime-Gypsum (FaLG)bricks has been studied in terms of energy exposure build up factors and dose parameters. The energyexposure build up factors of Flyash-lime-Gypsum (FaLG) bricks have been calculated for the energy rangeof 0.015 MeVe15 MeV and for penetration depth upto 40 mfp directly using a new and simplifiedPiecewise Linear Spline Interpolation Method (PLSIM). In this new method, the calculations of G.P fittingparameters are not required. The verification and accuracy of this new method has been checked bycomparing the results of exposure build up factor for NBS concrete calculated using present method withthe results obtained by using G.P fitting method. Further, the relative dose distribution and reducedexposure dose rate for various radioactive isotopes without any shielding material and with Flyash-limeGypsum (FaLG) bricks have been calculated in the energy range of 59.59e1332 keV. On the basis of theobtained results, it has been reported that the prepared Flyash-lime-Gypsum (FaLG) bricks possesssatisfactory radiation shielding properties and can be used as environmentally safe storage facilities forlow level nuclear waste
참고문헌 (46)
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