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Variation of the calculated values of exposure buildup factor (EBF) and energy absorption buildup factor (EABF) with photon energy for the granite samples in the energy range 0.015 to 15 MeV at the depth penetration (a): 1 mfp; (b): 5 mfp; (c): 10 mfp; (d): 20 mfp, and (e): 40 mfp.
