Chromite CL spectrum, 15 keV e- beam, CSIRO 2023
Measurement details
| Description | CL spectrum of Chromite (Fe2+Cr2O4) in specimen 'Ilmenite conc' (CSIRO - S0030), measured July 2023, in map 'Guide 2-1 0009-1 Ilmenite' (Combined 0009-1 Ilmenite clustered.epmx). |
| Reference | CSIRO 2023 https://research.csiro.au/microbeam-lab/ |
| Date measured | 2023-07-05 |
| Material | Chromite [ FeIICr2O4 ] |
| Specimen | S-2023-03.4 Ilmenite [CSIRO], Bangladesh |
| Technique | Cathodoluminescence (CL) |
| Instrument | JEOL 8500F Linux |
| Probe | 15 keV electron beam |
| Beam current | 70.13 nA |
| Probe diameter | 4 μm |
| Detector name | OceanOptics QEPRO |
| Det. technology | CCD, Si, Peltier cooled |
| Acquisition time | 4.33816 s |
| Channel count | 1024 |
| Wavelength range | 198.557 … 982.656 nm |
| Intensity range | -6.20637 … 554.155 counts |
| Integral | 125992 counts |
| Data filter | Savitzky-Golay, 5th order, ±25 channels |
| Related measurement | Chromite EDS spectrum, 15 keV e- beam, CSIRO 2023 (co-measured) |
| Lines | Unspecified 2.04416 — 2.46359 eV (100%), 1.4056 eV (61.5%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Fe | 1 | 14.3 | 24.9 |
| Cr | 2 | 28.6 | 46.5 |
| O | 4 | 57.1 | 28.6 |
Measurement spectrum
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Measurement image
CL spectrum of Chromite (Fe2+Cr2O4) from Bangladesh, measured July 2023, in map 'Guide 2-1 0009-1 Ilmenite'
© OpticalFit spectrum plot by A. Torpy. (C) 2023 CSIRO Mineral Resources