Recent studies of highly oriented pyrolytic graphite and hybrid graphite-silicon monochromator systemsAndreas K. Freund, Dawn Krencisz, Mike Crosby, Changyong Chen, Brian Kozak, Pavol Mikula and Gergely FarkasEPJ Web Conf., 286 (2023) 03012DOI: https://doi.org/10.1051/epjconf/202328603012