Assessment of emissivity measurements with a spectroradiometer at high temperature

This document presents a short summary of the improvements made at CNRS and the identified limitations for the measure of the directional spectral emissivity thanks to the addition of a new spectroradiometer to the existing system. These improvements offer both an increased quantity of services in the same operating time (more samples measured), and also a better quality of the service thanks to the finely detailed angular spectral data now provided to the users.