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 energy exposure build up factors of Flyash-lime-Gypsum (FaLG) bricks have been calculated for the energy range of 0.015 MeV–15 MeV and for penetration depth upto 40 mfp directly using a new and simplified Piecewise Linear Spline Interpolation Method (PLSIM). In this new method, the calculations of G.P fitting parameters are not required. The verification and accuracy of this new method has been checked by comparing the results of exposure build up factor for NBS concrete calculated using present method with the results obtained by using G.P fitting method. Further, the relative dose distribution and reduced exposure dose rate for various radioactive isotopes without any shielding material and with Flyash-lime-Gypsum (FaLG) bricks have been calculated in the energy range of 59.59–1332 keV. On the basis of the obtained results, it has been reported that the prepared Flyash-lime-Gypsum (FaLG) bricks possess satisfactory radiation shielding properties and can be used as environmentally safe storage facilities for low level nuclear waste.

在本研究中，从能量暴露累积因子和剂量参数方面研究了制备的粉煤灰石膏 (FaLG) 砖的辐射屏蔽和防护能力。粉煤灰-石灰-石膏 (FaLG) 砖的能量暴露累积因子已计算出能量范围为 0.015 MeV-15 MeV 且穿透深度高达 40 mfp 的情况，直接使用新的简化分段线性样条插值法 (PLSIM) . 在这种新方法中，不需要计算 GP 拟合参数。通过比较使用本方法计算的 NBS 混凝土的暴露增加因子的结果与使用 GP 拟合方法获得的结果，验证了这种新方法的验证性和准确性。更远，在 59.59-1332 keV 的能量范围内，计算了没有任何屏蔽材料和使用粉煤灰石膏（FaLG）砖的各种放射性同位素的相对剂量分布和降低的暴露剂量率。根据所获得的结果，据报道，制备的粉煤灰石膏（FaLG）砖具有令人满意的辐射屏蔽性能，可用作低放核废料的环境安全储存设施。