Fuzzy FMECA analysis of radioactive gas recovery system in the SPES experimental facility

Selective Production of Exotic Species is an innovative plant for advanced nuclear physic studies. A radioactive beam, generated by using UCx target-ion source system, ionized, selected and accelerated experimental objects. Very high vacuum conditions appropriate safety systems to storage exhaust gases are required avoid radiological risk operators people. In this paper, Failure Mode, Effects, Criticality Analysis a preliminary design activity gas recovery system performed modified Fuzzy Risk Priority Number rank the most critical components in terms failures human errors. Comparisons between fuzzy approach classic application allow show that able enhance focus assessments improve complex such as those under consideration.