Spectrum

Average reflectance spectrum of a fragment of Jbilet Winselwan chondrite (CM2) in the MIR range

Title
Average reflectance spectrum of a fragment of Jbilet Winselwan chondrite (CM2) in the MIR range
DOI
10.26302/SSHADE/EXPERIMENT_CL_20180316_01
Data reference
Lantz, Cateline; Brunetto, Rosario; Baklouti, Donia; Dionnet, Zélia; Rubino, Stefano; Arribard, Yann (2018): MIR reflectance spectra of different samples of carbonaceous chondrites (pellets and fragments). SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_CL_20180316_01
Publications
Experiment type
laboratory measurement
Type
normalized reflectance
Intensity unit
no unit
Reference position
995.0 $cm^{-1}$
Comments
The spectrum is the average of 12288 spectra each resulting from 512 scans and obtained by 1 unique measurement, thanks to the FPA detector of the instrument. Reference spectrum was acquired on a gold surface.
Instrument
SMIS Cary 670 - confocal reflection Mid-IR
Sample holder
Horizontal plate under the microscope at ambiant air
Standard medium
air
Observation mode
spectrum
Spectral range type(s)
MIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 850.0 - 3800.0 8.0 4.0 1.0
Scan number
512
Observation geometry
direct
Observation mode
N/A
Observation mode
averaged
Spots number
12288
Objective type
x25
Pixels separation
3.3 x 3.3 ${\mu}m$
Pixels number
192 x 192
Image size
633.0 x 633.0 ${\mu}m$
Resolutions
3.0 ${\pm}$ 1.0 ${\mu}m$ (3333.0 $cm^{-1}$)
Comments
The resolution changes with the wavelength according to the Abbe's equation.
Experiment
MIR reflectance spectra of different samples of carbonaceous chondrites (pellets and fragments)
Date begin
2020-07-17
Release date
2022-06-03 18:07:00 UTC+0000
Version (Date)
#1 (2022-06-03 18:07:00 UTC+0000, Updated: 2022-06-06 11:20:34 UTC+0000)
History
Date Mode Version Status Comments
2022-06-03 17:42:07 UTC+0000 first import #1 valid version 2022-05-22: First import
Analysis
The spectrum has been normalized by adjusting the height of the maximum of the Si-O band to 1 and the spectrum minimum to 0.
Quality flag
4
Validator(s)