Plagioclase (var. lunar) CL spectrum, 15 keV e- beam, CSIRO/WUStL Apollo 12 (2019)

Measurement details

Description CL spectrum of Plagioclase (var. lunar), from Apollo 12 mission
Reference Otherwise unpublished work by CSIRO & WUStL, Apollo 12, AMAS XV. Feb 2019
https://research.csiro.au/microbeam-lab/
Date measured 2019-02-21
Material Plagioclase (var. lunar) [ (Na, Ca)[(Si, Al)AlSi2]O8 ]
Specimen Apollo 12032-366-19x [NASA], Bench Crater, Ocean of Storms, 3.01239°S 23.42157°W, The Moon
Specimen URL https://curator.jsc.nasa.gov/lunar/lsc/12032.pdf
Technique Cathodoluminescence (CL)
Instrument JEOL 8500F
Probe 15 keV electron beam
Beam current 39.68 nA
Probe diameter 1 μm
Acquisition time 5550.07 s
Channel count 1024
Wavelength range 199.467 … 970.586 nm
Intensity range -25813.4 … 2.2513×106 counts
Integral 7.6368×108 counts
Lines Unspecified 2.61 eV (100%), 3.57 eV (22.4%)

Composition

Nominal composition of Plagioclase (var.lunar) [ (Na,Ca)[(Si,Al)AlSi2]O8 ].
Element Atoms
Na 0-1
Ca 0-1
Al 1-2
Si 2-3
O 8

Measurement spectrum

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