Monazite-(Ce) CL spectrum, 20 keV e<sup>-</sup> beam, Torpy <i>et al.</i> 2020

Monazite-(Ce) CL spectrum, 20 keV e^- beam, Torpy et al. 2020

Description	CL spectrum of Monazite-(Ce)
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	Monazite-(Ce) [ CePO₄ ] Monazite-(Ce) specimen from Norway © Photo by Penland, via Smithsonian National Museum of Natural History
Specimen	Tista 2020 D4 Shaker [CSIRO], Teesta River, Bangladesh Clustered phase map of river sands (D4 shaker), from the Tista River, Bangladesh. From Torpy et al. 2020 © (C) 2020 CSIRO Mineral Resources
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	462.7 s
Channel count	1024
Wavelength range	199.467 … 970.586 nm
Intensity range	-1.29395 … 84.9626 counts
Integral	6305.68 counts
Related measurement	Monazite-(Ce) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 (co-measured)
Lines	Ce 3.72367 eV (30.6073%), Nd³⁺ 1.42523 eV (100%), 1.39858 eV (76.215%), 1.38451 eV (61.3903%), 1.36983 eV (50.9848%), Sm³⁺ 1.9328 eV (7%), 2.0817 eV (12.8%)

Nominal composition of Monazite-(Ce) [ CePO₄ ].
Element	Atoms	At%	Wt%
Ce	1	16.7	59.6
P	1	16.7	13.2
O	4	66.7	27.2

CL spectrum of Monazite-(Ce)