PNNL has conducted Nondestructive Examinations (NDE) on the Pressure Vessel Research User Facility (PVRUF) vessel while located at Oak Ridge National Laboratory (ORNL) and detected and characterized over 2500 indications. Some of the weldment from PVRUF (approximately 20 meters) was received at PNNL for further inspections and validation. This paper discusses the results of the validation of flaws in the weldment of PVRUF through complementary NDE and destructive analysis.

Work Supported by the U.S. Nuclear Regulatory commission under Contract DE-AC06-76RLO1830; NRC JCN W6275; Ms. Deborah Jackson, Program Manager.