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Infrared reflectance spectra (4-12 micron) of lunar samples
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nash, Douglas B. |
| Copyright Year | 1991 |
| Description | Presented here are infrared reflectance spectra of a typical set of Apollo samples to illustrate spectral character in the mid-infrared (4 to 12 microns) of lunar materials and how the spectra varies among three main forms: soil, breccia, and igneous rocks. Reflectance data, to a close approximation, are the inverse of emission spectra; thus, for a given material the spectral reflectance (R) at any given wavelength is related to emission (E) by 1 - R equals E. Therefore, one can use reflectance spectra of lunar samples to predict how emission spectra of material on the lunar surface will appear to spectrometers on orbiting spacecraft or earthbound telescopes. Spectra were measured in the lab in dry air using a Fourier Transform Infrared spectrometer. Shown here is only the key portion (4 to 12 microns) of each spectrum relating to the principal spectral emission region for sunlit lunar materials and to where the most diagnostic spectral features occur. |
| File Size | 142132 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920001594 |
| Archival Resource Key | ark:/13960/t6p03320x |
| Language | English |
| Publisher Date | 1991-06-01 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Exploration Lunar Geology Moon Igneous Rocks Infrared Spectra Breccia Spectral Reflectance Lunar Rocks Infrared Spectrometers Emission Spectra Spectrometers Telescopes Lunar Soil Lunar Surface Drying Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
