Investigation on F/M material aspects of IRT-Sofia NCT channel

Abstract The filter/moderator area of IRT-Sofia BNCT channel was investigated in this study in order to find a higher radiation resistant material as a suitable substitution for the Teflon ® . Two options – Al 2 O 3 and graphite – were investigated. The results show, that both graphite and the Al 2 O 3 can be successfully used as a filter/moderator material at IRT-Sofia. Initial evaluation of the in-phantom performance of the IRT-Sofia BNCT channel was made and merits similar to the best existing ones were found.