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The key to construct the hot-cell is to calculate the buildup factors of radiation-protection glasses. However, there are few reports about the calculation of the buildup factor of radiation-protection glasses. In this article, G-P approximation method coefficients of 5 radiation-protection glasses are calculated according to the chemical composition of radiation-protection glasses and data from ANSI/ANSI-6.4.3. Based on the computed results, buildup factors of these 5 glasses are studied, interpolated and compared with exposure buildup factors calculated by the equivalent thickness of lead for the energy of gamma-ray emitted by nuclides, such as 60Co. The results show that the fitting functions of exposure buildup factors and penetration depth have a high relevancy R2 for a specific energy, the method of equivalent thickness is only appropriate for thin glasses and special attention must be paid to the glass thickness and gamma-ray energy. The results can be used as reference for the construction and shielding performance assessment of the viewing window of the hot-cell.

The matrix effect has a major impact on energy-dispersive X-ray fluorescence analysis (EDXRFA) and is difficult to be evaluated due to that the contents of some low-atomic-number elements cannot be identified by in-situ EDXRFA. Up to today, the fundamental parameter algorithm proposed by Rousseau has been widely applied to correct the matrix effect. Accordingly, determining the matrix and mass attenuation coefficient ( μ/ ρ) of sample is a key issue for the fundamental parameter algorithm. In present work, the method to deduce μ/ ρ by effective atomic number ( Zeff) was studied. First, the relationship between Zeff and coherence to Compton scatting ratio ( R) of the incident X-ray was determined by standard samples. Then, we deduce Zeff and their μ/ ρ. The value of μ/ ρ deduced by our method is in good agreement with that calculated by WinXCOM, and the relative change (Δ) is less than 7%. We also deduced Zeff and their μ/ ρ of Chinese national standard soil samples employing our method and good agreement with the calculated values were also obtained. We found that the agreement between experimental values of μ/ ρ with theoretical values by WinXCOM still exists when the energy of the incident X-ray is greater than 4 keV, and the Δ is less than 10%. The result indicates that our method may be applied directly to in-situ EDXRFA. [ABSTRACT FROM AUTHOR]