Determination of the Optical Constants and Radiative Heat Conductivity from Reflection Experiments on Nuclear Fuel Materials in the Liquid Phase Up to Above 4000 K

摘要

The report deals with the following questions: study of the optical constants n/sub lambda/(T), k/sub lambda/(T) and of the radiative heat conductivity K /sub rad/(T) of liquid nuclear fuel in the light of the problems of radiative heat conduction and heat transfer in reactor safety analysis; study of the optical constants in relation to the questions of the physical structure and chemical bonding character of nuclear fuel materials in the solid and liquid state; measuring methods for the determination of the optical constants of opaque non-scattering materials at elevated temperatures; and high-temperature measuring technique for determining n/sub lambda/(T), k/sub lambda/(T), K/sub rad/(T) of nuclear fuel materials up to above 4000 K from reflection measurements using a special integrating-sphere laser reflectometer. (Atomindex citation 11:527578)