Award Data

TECHNIQUES HAVE RECENTLY BEEN DEVELOPED TO ANALYZE THE 'SEISMIC MARGIN' OF A NUCLEAR POWER PLANT USING THE HCLPF CONCEPT (HIGH CONFIDENCE OF A LOW PROBABILITY OF FAILURE). STARTING WITH AN EARTHQUAKE LEVEL SHOSEN FOR MARGIN REVIEW, THE TECHNIQUE DETERMINES WHETHER THE PLANT CAN OR CANNOT 'WITHSTAND THE REVIEW-EARTHQUAKE WITHOUT CORE DAMAGE. HERE 'WITHSTAND' MEANS 'WITHSTAND WITH A HIGH CONFIDENCE ...

A RESEARCH PROGRAM IS PROPOSED FOR THE DEVELOPMENT OF A VALIDATED METHODOLOGY FOR PREDICTING THE EX-VESSEL BUOYANCY-DRIVEN FLOWS IN THE HOT LEG AND STEAM GENERATOR OF A WESTINGHOUSE PLANT, AND IN THE CANDY CANE HOT LEG OF A B&W PLANT. THE PROPOSED PHASE I WORK PLAN CONSISTS OF (A) REVIEWING AVAILABLE WESTINGHOUSE EXPERIMENTAL DATA AND SIMULATING THE EXPERIMENTAL CONFIGURATION, (B) VALIDATING THE M ...

COMPUTERIZED DATA COLLECTION DEVICES EXIST AND ARE BEING USED IN VARIOUS APPLICATIONS AT SOME NPPS FOR SYSTEMS AND EQUIPMENT NOT INSTRUMENTED IN THE CONTROL ROOM. HOWEVER, CURRENT APPLICATIONS IN THE NUCLEAR POWER INDUSTRY ARE RATHER SPORADIC AND NOT EXPLOITING THE FULL POTENTIAL OF THE TECHNOLOGY. FOR EXAMPLE, SEVERAL DIFFERENT NPPS USE SUCH SYSTEMS FOR SINGLE- PURPOSES SUCH AS TRENDS IN EQUIPMEN ...

AN ALPHA/BETA RADIATION DETECTOR SUITABLE FOR USE IN THE INSTRUMENT CHANNEL OF A FIBEROPTIC ENDOSCOPE WILL BE WILL BE DEVELOPED TO PROVIDE IN-VIVO IN-SITU BIOASSAY MEASUREMENTS LEADING TO COMPUTER-ASSISTED ESTIMATES OF IN- TERNAL DOSE AND DISTRIBUTION IN THE RESPIRATORY AND GASTRO- INTESTINAL TRACTS. DURING PHASE I OF THE PROGRAM, ALPHA AND BETA PARTICLE SENSITIVE SCINTILLATING PLASTIC FIBERS WILL ...

WITHIN A LABORATORY ENVIRONMENT, EMATS HAVE BEEN USED TO CHARACTERIZE DEFECTS IN BOTH FERRITIC AND AUSTENITIC WELDS . THE USE OF SHEAR-HORIZONTAL (SH) WAVES HAS PROVEN PART DEFECTS. FOR FRACTURE MECHANICS EVALUATION OF WELDED STRU STRUCTURES, IT IS PARTICULARLY IMPORTANT TO KNOW THE THROUGHEXTENT OF PLANAR DEFECTS. THIS PROPOSAL SEEKS SUPPORT FOR THE EVALUATION OF A NEW APPROACH TO WELD DEFECT CHA ...