Apatite CL spectrum, 20 keV e- beam, Torpy et al. 2020
Measurement details
| Description | CL spectrum of Apatite from the Tista River, Bangladesh |
| Reference | Torpy et al. 2020 Torpy, A., Wilson, N., MacRae, C., Pownceby, M., Biswas, P., Rahman, M., & Zaman, M. (2020). Deciphering the Complex Mineralogy of River Sand Deposits through Clustering and Quantification of Hyperspectral X-Ray Maps. Microscopy and Microanalysis, 26(4), 768-792 https://doi.org/10.1017/S143192762000135X |
| Date measured | 2018-04-14 |
| Material | Apatite [ Ca5(PO4)3(OH, F, Cl) ] |
| Specimen | Tista 2020 D4 Shaker [CSIRO], Teesta River, Bangladesh |
| Specimen temperature | Ambient |
| Technique | Cathodoluminescence (CL) |
| Instrument | JEOL 8500F |
| Probe | 20 keV electron beam |
| Beam current | 69.64 nA |
| Probe diameter | 2 μm |
| Detector name | OceanOptics QEPRO |
| Det. technology | CCD, Si, Peltier cooled |
| Acquisition time | 2225.6 s |
| Channel count | 1024 |
| Wavelength range | 199.467 … 970.586 nm |
| Intensity range | -1.15186 … 129.929 counts |
| Integral | 20088.3 counts |
| Related measurement | Apatite EDS spectrum, 20 keV e- beam, Torpy et al. 2020 (co-measured) |
| Lines | Ce3+ 3.52 eV (35.3745%), Dy3+ 2.15479 eV (100%), Nd3+ 1.42435 eV (20.0489%), 1.40632 eV (18.8248%), 1.37385 eV (15.0477%), REE3+ 2.57067 eV (32.5252%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| H | 0.118 | 1.66 | 0.07 |
| Ca | 1.667 | 23.42 | 39.36 |
| P | 1 | 14.05 | 18.25 |
| O | 4.112 | 57.76 | 38.76 |
| F | 0.111 | 1.56 | 1.24 |
| Cl | 0.111 | 1.56 | 2.32 |
Measurement spectrum
Loading...
Measurement image
CL spectrum of Apatite from the Tista River, Bangladesh
© (C) 2018 CSIRO Mineral Resources