Dolomite CL spectrum, 15 keV e- beam, CSIRO 2023

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 ]
Specimen S-23-013 Magnetite [CSIRO - Microbeam Lab client specimens]
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 -38.3712 … 4609.12 counts
Integral 1.1152×106 counts
Data filter Savitzky-Golay, 2nd order, ±10 channels
Lines (CO)n 2.9412 eV (100%), Mn2+ 1.894 eV (8.8%)

Composition

Nominal composition of Dolomite [ CaMg(CO3)2 ].
Element Atoms At% Wt%
Ca 1 10 21.7
Mg 1 10 13.2
C 2 20 13
O 6 60 52.1

Measurement spectrum

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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