Award Data

A PROGRAM IS PROPOSED TO SHOW THE FEASIBILITY OF DEPRESSED COLLECTORS FOR VERY HIGH AVERAGE POWER (APPROX. 1MW) GYROTRON OSCILLATORS FOR FUSION APPLICATIONS. INITIAL CALCULATIONS INDICATE THAT COLLECTION EFFICIENCIES EXCEEDING 75% CAN BE REALIZED. USE OF SUCH A COLECTOR ON A GYROTRON WITH A BASE EFFICIENCY OF 30% WOULD INCREASE THE EFFICIENCY TO OVER 60%. SUCH A DRAMATIC INCREASE IN EFFICIENCY WOU ...

BECAUSE OF THEIR LONG DECAY TIMES, SCINTILLATORS IN NEUTRON LOGGING TOOLS ARE RESPONSIVE PRIMARILY TO THE GAMMA RADIATION FROM THE NEUTRON CAPTURE SPECTUM. THIS INHIBITS POROSITY MEASUREMENTS IN GAS-FILLED ZONES AND SUBSTANTIALLY LIMITS THE ELEMENTAL INFORMATION ON THE STRATA WHICH CAN BE ACQUIRED. ADVANCES IN NEUTRON LOGGING TOOLS REQUIRE A NEW SCINTILLATOR MATERIAL CAPABLE OF MAKING PRECISION ME ...

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SURFACE METAL OXIDE AND OXYHYDROXIDE LAYERS HAVE BEEN IMPLICATED AS TRITIUM TRAPS IN STAINLESS STEELS. A NEW TECHNIQUE IS BEING DEVELOPED FOR MEASURING HYDROGEN ISOTOPE DIFFUSION WITHIN THIS LAYER AND WITHIN PERMEATION BARRIERS MEANT TO LIMIT TRITIUM INVENTORY IN THESE MATERIALS.

EXISTING INSTRUMENTATION FOR CHEMICAL ANALYSIS OF GAS MIXTURES DO NOT PROVIDE THE CAPABILITY FOR REAL-TIME MEASUREMENT OF A BROAD RANGE OF SPECIES AT TRACE (PPB) CONCENTRATION LEVELS. SUCH A CAPABILITY IS IMPORTANT IN MANY APPLICATIONS IN ATMOSPHERIC RESEARCH, POLLUTION CONTROL, TOXIC GAS SENSING, AND INDUSTRIAL PROCESS MONITORING. ALTHOUGH SPECIALIZED LASER METHODS HAVE BEEN DEMONSTRATED FOR MEAS ...

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DURING THE REFUELING OPERATIONS AT A NUCLEAR POWER PLANT, IT IS NECESSARY TO FLOOD LARGE CAVITIES ABOVE THE REACTOR PRESSURE VESSEL WITH WATER TO PROVIDE RADIATION SHIELDING. THE SPENT FUEL IS TRANSPORTED THROUGH THESE CAVITIES TO A TEMPORARY STORAGE POOL LOCATED NEAR THE REACTOR. OTHER CONTAMINATED INTERNAL REACTOR COMPONENTS ARE ALSO STORED WITHIN THESE CAVITIES DURING REFUELING. ONCE THE REFUEL ...

MANY UTILITY AND INDUSTRY COAL-FIRED BOILERS HAVE ELECTROSTATIC PRECIPITATORS (ESPS) ALONE, WHICH ARE NOT CAPABLE OF REMOVING SO2. MANY OLDER ESPS WILL REQUIRE UPGRADING IN THE 1990S TO MEET MORE STRINGENT PARTICULATE STANDARDS. ETS, INC. HAS TESTED ITS PATENTED LIMESTONE EMISSION CONTROL (LEC) SYSTEM, DEMONSTRATING GREATER THAN 90% SO2 REMOVAL CAPABILITY. LECS CAN BE PLACED DOWNSTREAM OF ESPS. IT ...

MRC PROPOSES TO DEVELOP A SAFETY PERFORMANCE INDICATOR (PI) OF THE ELECTROMAGNETIC (EM) PROTECTION STATUS OF A NUCLEAR POWER PLANT (NPP). WE BELIEVE THAT SUCH A PI IS NEEDED BECAUSE: (1) EM ENVIRONMENTAL POLLUTION IS ON THE INCREASE,(2) ADDITIONAL EM THREATS MUST BE EVALUATED, AND (3) DISRUPTION OF NPP OPERATIONS BY EM EFFECTS CAN AND MUST BE AVOIDED. PREVIOUS STUDIES HAVE ADDRESSED THE ISSUE OF E ...

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