“…There are several papers dealing with the problems of the irradiated Ignalina NPP graphite [Ancius et al, 2005, Mazeika et al, 2015, Narkunas et al, 2010, Plukiene et al, 2014, Remeikis et al, 2010, Smaizys et al, 2005 or the graphite of other NPPs with RBMK reactors [Bylkin et al, 2001, Bylkin et al, 2004. Some of them provide numerical estimations [e.g.…”