Developments in calibration of EUV and VUV detectors for solar orbiter instrumentation using synchrotron radiation

Space-based missions exploring the spectral ranges of extreme- and vacuum-ultraviolet radiation (EUV, VUV) require on-ground, at-wavelength calibration of their detectors and imaging systems. With the use of monochromatized synchrotron radiation, traceable calibrations regarding the spectral responsivity of the instruments can be provided. A dedicated vacuum chamber is used to house space instruments up to 100 kg weight for calibration measurements. Currently, the development of calibration procedures for the EUI instrument of the Solar Orbiter is still underway.