Characterization of the SIDDHARTA-2 luminosity monitor. (1st October 2020) - Skurzok, M.; Scordo, A.; Niedzwiecki, S.; Baniahmad, A.; Bazzi, M.; Bosnar, D.; Bragadireanu, M.; Carminati, M.; Cargnelli, M.; Clozza, A.; Curceanu, C.; Paolis, L. De; et al.