Spinel CL/SEM spectrum, 20 keV e- beam, CSIRO 2016
Measurement details
| Description | CL/SEM spectrum of Spinel |
| Reference | Otherwise unpublished luminescence spectra measured by the CSIRO Mineral Resources Microbeam Laboratory, Clayton https://research.csiro.au/microbeam-lab/ |
| Material | Spinel [ MgAl2O4 ] |
| Specimen temperature | Ambient |
| Technique | Cathodoluminescence (CL), using an Electron Probe Micro-Analyser (EPMA) |
| Instrument | JEOL 8500F |
| Probe | 20 keV electron beam |
| Beam current | 10 nA |
| Probe diameter | 20 μm |
| Channel count | 1024 |
| Energy range | 1.276 … 6.21118 eV |
| Intensity range | -0.12 … 130.586 counts |
| Integral | 37821.1 counts |
| Lines | Cr3+ 1.80453 eV (16%), 1.6 — 1.82 eV, Mn2+ 2.4027 eV, Oxygen vacancy 2.887 eV (100%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Mg | 1 | 14.3 | 17.1 |
| Al | 2 | 28.6 | 37.9 |
| O | 4 | 57.1 | 45 |
Measurement spectrum
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Measurement image
CL/SEM spectrum of Spinel