کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1780865 | 1523918 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calibration of the MESSENGER X-Ray Spectrometer
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Calibration of the MESSENGER X-Ray Spectrometer Calibration of the MESSENGER X-Ray Spectrometer](/preview/png/1780865.png)
چکیده انگلیسی
The X-Ray Spectrometer (XRS) that flew on the MESSENGER spacecraft measured X-rays from the surface of Mercury in the energy range ~1-10 keV. Detection of characteristic Kα-line emissions from Mg, Al, Si, S, Ca, Ti, and Fe yielded the surface abundances of these geologically important elements. Spatial resolution as fine as ~40 km (across track) was possible at periapsis for those elements for which counting statistics were not a limiting factor. Four years of orbital observations have made it possible to generate from XRS spectra detailed elemental composition maps that cover a majority of Mercury׳s surface. Converting measurements to compositions requires a thorough understanding of the XRS instrument capabilities. The ground and flight calibration measurements presented here are necessary for the reduction and analysis of the X-ray data from the MESSENGER mission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 122, March 2016, Pages 13-25
Journal: Planetary and Space Science - Volume 122, March 2016, Pages 13-25
نویسندگان
Richard D. Starr, Charles E. Schlemm II, George C. Ho, Larry R. Nittler, Robert E. Gold, Sean C. Solomon,