Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 17 / Number 3 / Pages 419-424
A. B. Chilton, C. M. Huddleston
Nuclear Science and Engineering / Volume 17 / Number 3 / Pages 419-424
Format:electronic copy (download)
A semiempirical formula is developed which yields values for the differential dose albedo of gamma rays on concrete. Gamma rays of incident energies 0.2, 0.5, 1.0, 2.0, 4.0, 6.0, and 10.0 Mev are considered. Results of the semiempirical formula are compared with values derived from Monte Carlo calculations for the backscattering of gamma rays from a semi-infinite slab of concrete. Results show that the two-parameter formula gives satisfactory agreement with the Monte Carlo calculations. The principal assumption involved in the theoretical analysis is that the actual reflection process can be approximated by two terms, one involving a single Compton scattering event and the other involving isotropic processes. The two parameters used involve the contributions of the two terms.
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