Average obligated amount per year since period start.
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THE RECENT DETECTION OF OH ON THE LUNAR SURFACE AND WATER-ICE IN A SHADOWED CRATER MOTIVATE THE CURRENT LABORATORY STUDY THAT AIMS TO INCREASE OUR UNDERSTANDING OF THE ORIGIN OF THIS SIGNAL. LABORATORY STUDIES OF PROTON AND DEUTERON IMPLANTATION INTO TERRESTRIAL MINERALS OR GLASSES SUPPORT THE SOLAR WIND HYPOTHESIS. HOWEVER, NONE OF THE STUDIES TO DATE HAVE USED LUNAR SOILS AS TARGETS FOR ION IMPLANTATION STUDIES. THE USE OF LUNAR SOIL IS IMPORTANT TO PROVIDE MID-IR SPECTRA THAT ARE DIRECTLY COMPARABLE TO THE REMOTE SENSING RESULTS. IN ADDITION, LABORATORY STUDIES HAVE THE ADVANTAGE THAT THE ENTIRE SPECTRAL WINDOW OF INTEREST MAY BE EXAMINED IN DETAIL. THUS, COMBINATION AND OVERTONE BANDS MIGHT BE OBSERVED IN ADDITION TO THE STRONGER FUNDAMENTALS. THESE BANDS WOULD UNIQUELY IDENTIFY WATER IF IT IS FORMED, AND WOULD ALSO PROVIDE SPECTRAL BANDS TO AID IN THE DECONVOLUTION OF DATA ACQUIRED FROM THE MOON OR OTHER AIRLESS BODIES. THE GOALS OF THIS STUDY ARE THREE-FOLD. (1) TO TEST THE SOLAR WIND HYPOTHESIS BY USING LUNAR SOILS AS TARGETS FOR PROTON AND DEUTERON ION BOMBARDMENT AND SUBSEQUENT CHARACTERIZATION BY IR SPECTROSCOPY. (2) TO SIMULATE THE DIURNAL CYCLE OF THE MOON BY HEATING THE ION-IMPLANTED SAMPLES TO 120C UNDER VACUUM, IRRADIATING WITH UV LIGHT, AND MEASURING CHANGES IN THE IR SPECTRA. AND (3) TO UNDERSTAND THE EFFECTS OF PROTON BOMBARDMENT OF LUNAR SOILS THROUGH MONTE CARLO SIMULATIONS OF THE RANGE AND DAMAGE THAT IONS INFLICT UPON THE TARGET USING THE PROGRAM SRIM (STOPPING AND RANGE OF IONS IN MATTER).
Estimated months remaining until end of performance.
Task order obligations
Period of performance
100% of period elapsed
Awarding Agency
NANATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Code: 8000
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