Fe K edge XAS transmission of bulk Niger CM chondrite: normalized spectrum

Spectrum

Title: Fe K edge XAS transmission of bulk Niger CM chondrite: normalized spectrum

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Data

Unit: Range: Valid spectral range(s): 56491071.0150975 - 59564043.3247423 eV

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References

DOI

10.26302/SSHADE/EXPERIMENT_LB_20191211_001

Data reference

Garenne, Alexandre; Bonal, Lydie; Beck, Pierre; Proux, Olivier (2013): Fe K edge XAS transmission of bulk CM carbonaceous chondrites. SSHADE/GhoSST+FAME (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20191211_001

Publications

Owner

Database

GhoSST

FAME

Experimentalists

Spectrum type

Experiment type

laboratory measurement

Type

normalized absorbance

Intensity unit

Reference spectra

Fe K edge XAS transmission of bulk Niger CM chondrite: raw spectrum

Comments

3 spectra were measured at different locations and averaged + the raw spectra were normalized using two polynomial curves, for the pre-edge region (linear curve) and the post-edge region (polynomial order: 2) while the edge jump was scaled by a factor to give a jump of 1. These normalizations were performed with the software ATHENA from the IFEFFIT package (Ravel and Newville 2005).

Instrument #1

Instrument: X-ray Absorption Spectroscopy measured in transmission mode
Sample holder: simple holder

Spectral parameters

Standard medium

unknown

Observation mode

spectrum

Spectral range type(s)

hard X

Valid spectral range(s)

	Min - Max ($eV$)	Sampling ($eV$)	Resolution ($eV$)	Position accuracy ($eV$)	Absorption edge
#1	7004.0 - 7385.0		0.365		$Fe$ (K: 7.112 $keV$)

Comments

The resolution in the above table is the resolution given by the monochromator. The energy was calibrated by measuring the absorption edge of a reference: Fe metallic foil (first maximum of the derivative set at 7112 eV). The resolution of the spectrometer analyser was 0,365 eV (FWHM of the elastic peak).