Dolomite CL spectrum, 15 keV e- beam, CSIRO 2023
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Measurement details
| Description | CL spectrum of Dolomite [CaMg(CO3)2] in specimen 'CSIRO S-23-013' from Bangladesh |
| Reference | CSIRO 2023 https://research.csiro.au/microbeam-lab/ |
| Date measured | 2023-07-05 |
| Material | Dolomite [ CaMg(CO3)2 ] |
| Analysis technique | Cathodoluminescence (CL) |
| Instrument | JEOL 8500F Linux |
| Probe | 15 keV electron beam |
| Beam current | 70.26 nA |
| Probe diameter | 4 μm |
| Detector name | OceanOptics QEPRO |
| Det. technology | CCD, Si, Peltier cooled |
| Acquisition time | 11.1644 s |
| Channel count | 1024 |
| Wavelength range | 198.557 … 982.656 nm |
| Intensity range | -38.4 … 4609 counts |
| Integral | 1.1152×106 counts |
| Data filter | Savitzky-Golay, 2nd order, ±10 channels |
| Lines | CO0 2.9412 eV (100%), {{linesearch:7a396a52-81e4-47dc-868c-0efd25819318|Mn2+}}: 1.894 eV (8.8%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Ca | 1 | 10 | 21.7 |
| Mg | 1 | 10 | 13.2 |
| C | 2 | 20 | 13 |
| O | 6 | 60 | 52.1 |
| Total | 10 | 100 | 100 |
Measurement image
CL spectrum of Dolomite [CaMg(CO3)2] from Bangladesh, measured July 2023, in map 'Guide 2-1 0009-3 Non-mag' (Combined 0009-3 Non-mag clustered.epmx).
OpticalFit spectrum plot by A. Torpy. (C) 2023 CSIRO Mineral Resources