Spectrum

Fe K edge XAS transmission of bulk ALH84033 CM chondrite: normalized spectrum

Title
Fe K edge XAS transmission of bulk ALH84033 CM chondrite: normalized spectrum
DOI
10.26302/SSHADE/EXPERIMENT_LB_20191211_002
Data reference
Garenne, Alexandre; Bonal, Lydie; Beck, Pierre; Proux, Olivier (2013): Fe K edge XAS transmission of bulk heated CM carbonaceous chondrites. SSHADE/GhoSST+FAME (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20191211_002
Publications
Experiment type
laboratory measurement
Type
normalized absorbance
Intensity unit
AU
Reference spectra
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
X-ray Absorption Spectroscopy measured in transmission mode
Sample holder
simple holder
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).
Observation geometry
direct
Observation mode
fixed angles
Observation mode
single spot
Experiment
Fe K edge XAS transmission of bulk heated CM carbonaceous chondrites
Parent spectrum
Date begin
2013-09-02
Release date
2019-12-13 13:04:26 UTC+0000
Version (Date)
#1 (2019-12-13 13:04:26 UTC+0000, Updated: 2020-01-14 08:59:42 UTC+0000)
History
Date Mode Version Status Comments
2019-12-13 12:50:38 UTC+0000 first import #1 valid version
Analysis
normalized averaged spectra
Quality flag
5