Quantitative analysis of reliability of thermonuclear power installations at early design phases

General methodology principles and simplified algorithms for reliability and availability assessment of thermonuclear reactor systems are presented. A tube reliability Reference Table which is considered to be appropriate for the subject of interest is proposed. The Table was composed on the bases of worldwire nuclear piping reliability data analysis and expert ranging technique application. As an example, ITER first wall and blanket reliability assessments are presented. 10 refs.; 6 figs.; 4 tabs