Plagioclase (var. lunar) CL spectrum, 15 keV e- beam, CSIRO/WUStL Apollo 12 (2019)
Measurement details
| Description | CL spectrum of Plagioclase (var. lunar), from Apollo 12 mission |
| Reference | Otherwise unpublished work by CSIRO & WUStL, Apollo 12, AMAS XV. Feb 2019 https://research.csiro.au/microbeam-lab/ |
| Date measured | 2019-02-21 |
| Material | Plagioclase (var. lunar) [ (Na, Ca)[(Si, Al)AlSi2]O8 ] |
| Specimen | Apollo 12032-366-19x [NASA], Bench Crater, Ocean of Storms, 3.01239°S 23.42157°W, The Moon |
| Specimen URL | https://curator.jsc.nasa.gov/lunar/lsc/12032.pdf |
| Technique | Cathodoluminescence (CL) |
| Instrument | JEOL 8500F |
| Probe | 15 keV electron beam |
| Beam current | 39.68 nA |
| Probe diameter | 1 μm |
| Acquisition time | 5550.07 s |
| Channel count | 1024 |
| Wavelength range | 199.467 … 970.586 nm |
| Intensity range | -25813.4 … 2.2513×106 counts |
| Integral | 7.6368×108 counts |
| Lines | Unspecified 2.61 eV (100%), 3.57 eV (22.4%) |
Composition
| Element | Atoms |
|---|---|
| Na | 0-1 |
| Ca | 0-1 |
| Al | 1-2 |
| Si | 2-3 |
| O | 8 |
Measurement spectrum
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