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ZAP ENERGY <br /> ZRD-SPL-001 <br /> 1.5.4 Dose Conversions <br /> The neutron and gamma fluences simulated in the laboratory space are converted to effective dose <br /> based on ICRP103 (AP irradiation direction) fluence-to-dose conversion coefficients [5]. <br /> 1.0E+03 <br /> Neutron <br /> O <br /> Photon <br /> 1.0E+02 <br /> > V <br /> 0 <br /> O <br /> V <br /> 0) 1.0E+01 <br /> (A H <br /> 0 4- <br /> C � <br /> O 'O <br /> },' ;2 1.0E+00 <br /> a V <br /> O <br /> 3 1.0E-01 <br /> 1.0E-09 1.0E-07 1.0E-05 1.0E-03 1.0E-01 1.0E+01 <br /> Energy (MeV) <br /> Figure 5 ICRP 103 Fluence-to-dose conversion coefficients for neutrons and photons <br /> 1.5.5 Material Assumptions for the Building Structure <br /> The floor slab and building walls are assumed to consist of Portland concrete having density of 2.2 <br /> g/cm3,as the material specification is not available from the building drawing.The internal drywall <br /> partitions are modelled as 1-inch thick with a density of 0.8 g/cm3. It is assumed that there is a 0.5- <br /> inch plywood ceiling on top of the control room. The building roof consists of a single ply roof <br /> membrane over R-20.4 rigid insulation on wood decking. It is modeled as a 2-inch-thick plywood. <br /> Zap Energy Inc. Proprietary Information <br /> 7 <br />