Development of ultrasonic testing procedures and determination of performance of the assembly of the joint of header to steam generator PGV-1000M - A. V. Dub; V. A. Durynin; A. N. Razygraev; N. P. Razygraev; I. L. Kharina; L. M. Lobanov; V. I. Makhnenko; O. V. Makhnenko; Ju. Saprykina (Technical diagnostics and non-destructive testing, 2014)