A.A. Gui, J.K. Shultis and R.E. Faw "Application of the Integral Line-Beam Method to Neutron Skyshine Analysis," Proc. 1996 Shielding Topical Meeting, Advances and Applications in Radiation Protection and Shielding, Vol. 2, American Nuclear Society, LaGrange Park, Illinois, April, 1996.

Abstract

Approximate neutron and associated secondary photon line-beam and conical-beam response functions for point monodirectional neutron sources are obtained from MCNP Monte Carlo results. These response functions are approximated by three-parameter formulas for source-to-detector distances up to 2500 m. Importantly, they give dose equivalent responses which are required for modern radiological assessments. Accounting for variable air density and humidity, and correcting for the air-ground interface are discussed. Applications of the integral line-beam method to neutron skyshine problems with simple geometries are presented and approximate results are compared to results of Monte Carlo calculations.

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