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WIRE CHAMBERS ARE A CLASS OF PARTICLE TRACK DETECTORS THAT HAVE FOUND WIDE APPLICATIONS IN HIGH ENERGY PARTICLE PHYSICS EXPERIMENTS. LARGE WIRE CHAMBER DETECTORS HAVE BECOME RATHER COMPLEX, REQUIRING MANY FAST ELECTRONIC CIRCUITS. THIS INVESTIGATION OFFERS THE POTENTIAL OF SIMPLIFICATION AND COST REDUCTION FOR LARGE WIRE CHAMBER DETECTORS. THE PHASE I EFFORT IS INVESTIGATING THE FEASIBILITY OF USI ...

PHASE I ADDRESSES A NEW APPROACH FOR THE DESIGN OF HIGH POWER NUCLEAR TARGETS USED FOR PRODUCTION OF RADIOISOTOPES BY HIGH ENERGY CHARGED PARTICLE BEAMS, NOTABLY HIGH ENERGY PROTONS. SUCH TARGETS WILL YIELD LARGER QUANTITIES OF RADIOACTIVE SPECIES THAN PRESENTLY AVAILABLE, EITHER FOR BASIC RESEARCH (E.G., STUDIES USING RADIOACTIVE BEAMS) OR FOR APPLIED PURPOSES (E.G., PRODUCTION OF MEDICAL RADIOI ...

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A THERMIONIC FUEL ELEMENT (TFE) BASED ON ADVANCED URANIUM CARBIDE (UC) SOLID SOLUTION FUEL WITH RHENIUM EMITTER CLADDING SHOULD ALLOW MUCH BETTER PERFORMANCE THAN PRESENT DESIGNS. THE FUEL FORM WOULD BE A LONG, THIN, HOLLOW "VERMICELLI" SHAPE TO ALLOW VERY COMPACT REACTORS TO BE DESIGNED, DESPITE THE HIGH NEUTRON ABSORPTION CROSS SECTION OF RHENIUM. RHENIUM IS EXPECTED TO BE COMPLETELY COMPATIBLE ...

IN PHASE I AN IN-SIT METHOD IS PRESENTED FOR ELECTRICALLY HEATING EMITTERS OF MULTI-CELL IN-CORE THERMIONIC FUEL ELEMENTS (TFES). NUCLEAR HEATING IS NOT REQUIRED. THIS IS ACCOMPLISHED BY SUPPLYING PULSES OF ELECTRIC CURRENT TO MOMENTARILY BIAS THE COLLECTORS IN THE TFE WI A SEVERAL-VOLT NEGATIVE VOLTAGE. ELECTRONS ARE EMITTED FROM THE NOMINAL COLLECTOR VIA SCHOTTKY EMISSION AND HEAT THE EMITTER VI ...