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Backscatter mossbauer spectrometer (bams) for extraterrestrial applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Agresti, D. G. Morris, R. V. Pimperl, M. M. Wills, E. L. Shelfer, T. D. Shen, M. H. |
| Copyright Year | 1993 |
| Description | Mossbauer spectroscopy is a nuclear gamma resonance technique particularly well suited to the study of materials that contain iron (Fe-57). It can provide information on the oxidation state of iron as well as the type and proportion of iron-containing mineral species in a sample of interest. Iron Mossbauer spectroscopy (FeMS) has been applied to samples believed to have come from Mars (SNC meteorites) and has been helpful in refining the choice among putative Martian surface materials by suggesting a likely nanophase component of the Martian regolity. FeMS spectrum of a Martial analogue material (Hawaiian palagonite) is shown; it is dominated by ferric-bearing phases and shows evidence of a nanophase component. FeMS has also been applied to lunar materials. It can be used to measure the maturity of lunar surface material and has been proposed as a prospector for lunar ilmenite, an oxygen resource mineral. Several years ago we suggested a backscatter Mossbauer spectrometer (BaMS) for a Mars rover mission. Backscatter design was selected as most appropriate for in-situ application because no sample preparation is required. Since that time, we have continued to develop the BaMS instrument in anticipation that it would eventually find a home on a NASA planetary mission. Gooding proposed BaMS as a geochemistry instrument on MESUR. More recently, an LPI workshop has recommended that BaMS be included in a three-instrument payload on the next (1996?) lunar lander. |
| File Size | 188607 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940025270 |
| Archival Resource Key | ark:/13960/t7fr4sw5f |
| Language | English |
| Publisher Date | 1993-06-15 |
| Access Restriction | Open |
| Subject Keyword | Spectroscopy Space Missions Iron 57 Backscattering Spectrometers Surface Properties Astronomical Spectroscopy Iron Meteorites Mars Surface Lunar Surface Mossbauer Effect Ilmenite Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
