Award Data

AN ON-GOING THREAT TO THE RESIDUAL LIFETIME AND SAFETY OF BOILING WATER REACTORS (BWRS) IS INTERGRANULAR STRESS CORROSION CRACKING (IGSCC). A COMPONENT OF SPECIAL CONCERN IN THE RECIRCULATION INLET NOZZLE SAFE END (RINSE). FOR EXAMPLE, WITHIN THE LAST 2 YEARS 30 OUT OF 30 RINSES ARE KNOWN TO BE CRACKED AT A 3-UNIT BWR SITE AND IT IS BELIEVED THAT 20 OUT OF 20 RINSES ARE CRACKED AT A 2-UNIT BWR SIT ...

A high sensitivity laser-induced incandescence system is proposed for the detailed characterization of environmental soot. The Phase 1 effort has clearly demonstrated the feasibility of (1) reducing the lower detection limit of soot volume fraction and increasing the overall measurement range by at least 2 orders of magnitude from what is currently achievable, and (2) providing PM particle size me ...

THE FEASIBILITY OF DEVELOPMENT OF A NEW LONG RANGE RADIOACTIVE PLUME TRANSPORT CODE IS PROPOSED. NEW APPROACHES TO ESTIMATE THE RADIOACTIVE DECAY, WET AND DRY DEPOSITION, PARTICULATE COAGULATION, AND ATMOSPHERIC PARAMETERS WILL BE EXPLORED AND A SIMPLE, IDEALIZED EVALUATION OF THESE ALGORITHMS WILL BE MADE IN PHASE I OF THE PROPOSED EFFORT. BASED ON THESE STUDIES A) AN APPROPRIATE NEAR SOURCE RISE ...

NIST is seeking a large area solar simulator to overcome the shortcomings of current solar simulators. To meet this need, Physical Optics Corp. (POC) proposed to develop a new Holographic Light-Emitting-Diode-Based Solar Simulator (HOLIOS) based on holographic gratings, holographic diffuser, high-power light emitting diodes with electronic drivers, collimating and projection optics, and photodetec ...

The objective of this proposal is to create a prototype imaging variable kinetic energy electron analyzer in the range 0.1 to 8 keV for use with an X-ray excitation source. The imaging analyzer is to have a target imaging spatial resolution of 100 nm. The X-ray excitation source will be a synchrotron light source. The instrument can be described as an X-ray photoelectron spectroscopy (XPS) microsc ...

IT IS NECESSARY TO ESTIMATE J-R OR JI DATA FOR AGING AND RE-SIDUAL LIFE STUDIES, USING DATA FROM SURVEILLANCE CAPSULE SPECIMENS THAT REFLECT THE CURRENT STATE OF THE PRESSURE VESSEL STEEL. AN IMPROVED MODEL IS NEEDED THAT WILL PREDICT J J-R DATA FROM CHARPY DATA, TENSILE PROPERTIES, MATERIAL COM-POSITION AND OTHER MEASURABLE PROPERTIES. SUCH A MODEL WILLBE DEVELOPED UNDER THIS PROJECT, USING INNOV ...

We propose to demonstrate near infrared (NIR) InGaAs sensor arrays with 55% lower noise than arrays presently available to improve the sensitivity of current spectroscopy systems. The low noise performance will be enabled by the use of low-noise source follower per detector ROICs, which are also used in astronomy with HgCdTe for low noise measurements. With design improvements to current available ...

THE RESEARCH PROGRAM WILL DEVELOP A MICROCOMPUTER BASED SYSTEM OF HARDWARE AND SOFTWARE WHICH WILL ALLOW THE USER TOEXECUTE MAINFRAME BASED CODES ON THE MICROCOMPUTER. IN ADDITION PARALLEL EXECUTION OF SEVERAL CODES AT ONCE IS POSSIBLEA SPECIAL INPUT AND OUTPUT PROCESSOR MODULES WILL ALSO BE DEVELOPED TO DEMONSTRATE THE USER FRIENDLY CAPABILITIES OF THE SYSTEM AND FACILITATE INPUT PREPARATION AND ...

WORKER/DOSIMETER (W/D) GEOMETRY AND RELATIONSHIP TO A SOURCEOF RADIATION CAN PROVIDE FALSE RECORDING OF THE RADATION DOSE RECEIVED BY AN INDIVIDUAL. HENCE, TECHNOLOGY INTERNATIONAL INCORPORATED (TII) IS PROPOSING A TWO PHASE EFFORT WHICH INVOLVES A COMPUTER SIMULATION EXPERIMENT USING GEOMETRIC MODELING IN CONJUNCTION WITH A DOSE COMPUTATION ALGORITHM, FOLLOWED BY PERFORMANCE OF EXPERIMENTEMPLOYIN ...