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IN AN EFFORT TO UNDERSTAND THE PROCESSES IN WHICH PARTICLES ARE ACCELERATED AT THE SUN MY RESEARCH FOR THE COMING YEAR WILL CONSIST OF STATE-OF-THE-ART TECHNOLOGY DEVELOPMENT AND ANALYSIS WITH THE UNIQUE DISCOVERY DATA FROM PARKER SOLAR PROBE (PSP). I WILL CONTINUE MY WORK TOWARD THE CALIBRATION AND SIMULATION OF THE IONOSPHERIC NEUTRON CONTENT ANALYZER (INCA) A DOUBLE SCATTER NEUTRON SPECTROMETER FOR A 3U CUBESAT DEVELOPED AT NEW MEXICO STATE UNIVERSITY WITH A SCHEDULED DELIVERY DATE OF JUNE 2019. I WILL APPLY LESSONS LEARNED FROM THE SIMULATIONS DEVELOPED FOR A SINGLE INTERACTION IN ONE OF THE TWO INCA CRYSTALS TO AN EXPANDED SIMULATION OF THE DOUBLE SCATTER MODE IN ORDER TO SIMULATE CF-252 NEUTRON DOUBLE SCATTER INTERACTIONS. THE ANALYSIS AND SIMULATION TECHNIQUES DEVELOPED IN THE CALIBRATION OF INCA WILL BE UTILIZED IN CALIBRATION OF FUTURE INSTRUMENTS SUCH AS SONTRAC. I WILL ALSO BE INVOLVED IN THE DEVELOPMENT OF A STATE-OF-THE-ART NEUTRON/GAMMA-RAY SPECTROMETER SONTRAC DESIGNED TO MEASURE SOLAR NEUTRONS FROM 20-200 MEV. THIS INSTRUMENT UTILIZES BUNDLES OF PLASTIC SCINTILLATING OPTICAL FIBERS STACKED IN MUTUALLY ORTHOGONAL LAYERS READ OUT BY COMPACT SILICON PHOTOMULTIPLIERS (SIPMS). MY ROLE IN THE DEVELOPMENT WILL BE TO INTEGRATE TEST AND CALIBRATE THE INSTRUMENT USING LABORATORY SOURCES AND GROUND-LEVEL MUONS PRODUCED IN GALACTIC COSMIC RAY INTERACTIONS IN THE EARTH S ATMOSPHERE. AS WELL I WILL DEVELOP GEANT4 SIMULATIONS OF THE INSTRUMENT. I WILL PARTICIPATE IN AN ACCELERATOR RUN IN SUMMER 2020 FOR WHICH I WILL ANALYZE AND INTERPRET THE RESULTS. I WILL ALSO BEGIN ANALYSIS OF DATA FROM THE PSP HIGH ENERGY ENERGETIC PARTICLE INSTRUMENT (EPI-HI) TELESCOPE. EPI-HI MEASURES ELECTRONS FROM 0.5-6 MEV AND IONS FROM 1-200 MEV/NUCLEON AS WELL AS NEUTRAL PARTICLES. USING EPI-HI I WILL BEGIN EXAMINING PARTICLE ACCELERATION IN SMALL IMPULSIVE SOLAR FLARE EVENTS AS WELL AS SOLAR NEUTRONS PRODUCED INDIRECTLY THROUGH SPALLATION PROCESSES. THE RESPONSE OF EPI-HI TO NEUTRAL PARTICLES WILL BE DERIVED FROM GEANT4 SIMULATIONS AND PRE-FLIGHT CALIBRATION DATA. I HAVE ALREADY INSTALLED THE PSP ANALYSIS SOFTWARE AND WILL PARTICIPATING WEEKLY ON PSP TELECONFERENCES.

$220,725FY2020National Aeronautics and Space AdministrationNASA

George Washington University (The)

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