Raman averaged spectrum of non-irradiated areas of Allende pellet n°2

Spectrum

Title: Raman averaged spectrum of non-irradiated areas of Allende pellet n°2

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Data

Unit: Range: Valid spectral range(s): 200.0 - 3400.0 cm-1

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References

DOI

10.26302/SSHADE/EXPERIMENT_RB_20130101_001

Data reference

Brunetto, Rosario (2013): Ion irradiation ($He^+$, $Ar^+$) of an Allende meteorite pellet probed by Raman spectroscopy. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_RB_20130101_001

Publications

Brunetto et al., 2014, Icarus, 237, 292

Owner

Database

DAYSY

Experimentalists

Rosario Brunetto

Spectrum type

Experiment type: laboratory measurement
Type: Raman scattering intensity
Intensity unit: AU
Comments: Thickness of the meteorite pellet is large enough (>200 µm) to avoid contribution of KBr to the spectra.

Instrument #1

Instrument: Thermo DXR - Raman
Sample holder: samples mounted horizontally on X-Y stage of microscope

Spectral parameters

Standard medium

vacuum

Observation mode

spectrum

Spectral range type(s)

MIR, FIR

Excitation wavelength

532 nm

Valid spectral range(s)

	Min - Max ($cm^{-1}$)	Sampling ($cm^{-1}$)	Resolution ($cm^{-1}$)	Position accuracy ($cm^{-1}$)	Absorption edge
#1	200.0 - 3400.0	0.9642	4.0	1.0

Comments

Raman shift with respect to laser at 532 nm

Angular parameters

Observation geometry: other geometry
Observation mode: fixed angles

Comments: Confocal measurement with a x50 objective at long working distance

Spatial parameters

Observation mode: averaged
Spots number: 20
Objective type: x50
Image size: 1.0 x 1.0 ${\mu}m$
Comments: We recorded Raman maps of the different areas (virgin and irradiated) on the pellets to better cope with surface heterogeneity issues