- Title
- Vis-NIR and Mid-IR reflectance spectra, Mid-IR transmission and Raman spectra of several preparations of the Oued Chebeika 002 meteorite (CI chondrite)
- DOI
- 10.26302/SSHADE/EXPERIMENT_LB_20241211_001
- Data reference
- Bonal, Lydie; Beck, Pierre; Poch, Olivier (2024): Vis-NIR and Mid-IR reflectance spectra, Mid-IR transmission and Raman spectra of several preparations of the Oued Chebeika 002 meteorite (CI chondrite). SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20241211_001
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- Mid-IR and Vis-NIR reflectance spectra (i = 0°, e = 30°) - recorded with two different instruments - of raw chips and powdered sample, Mid-IR transmission of matrix fragments pressed on diamonds, and Raman emission spectra of matrix fragments pressed on glass slide of the Oued Chebeika 002 meteorite (CI chondrite)
- Number of spectra
- 20
- Variable type(s)
-
- spectrum type
- sample composition
- Comments
- measurements of several preparations of Oued Chebeika 002 with different techniques and instruments
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max (nm) Sampling (nm) Resolution (nm) Position accuracy (nm) Absorption edge #1 1000.0 - 1590.0 10.0 9.5 #2 1600.0 - 2830.0 10.0 19.0 #3 2840.0 - 4200.0 10.0 39.0 - Comments
- spectra were recordred in the 500-4000 nm range but there are some issues with data below 550 nm
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- bidirectional
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
- Resolution illumination
- 5.8°
- Resolution observation
- 4.1°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Comments
- samples were illuminated with a monochromatic beam <= 1.7 mm in diameter
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max (nm) Sampling (nm) Resolution (nm) Position accuracy (nm) Absorption edge #1 1000.0 - 1590.0 10.0 9.5 #2 1600.0 - 2830.0 10.0 19.0 #3 2840.0 - 4200.0 10.0 39.0 - Comments
- spectra were recordred in the 500-4000 nm range but there are some issues with data below 550 nm
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- bidirectional
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
- Resolution illumination
- 5.8°
- Resolution observation
- 4.1°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Comments
- samples were illuminated with a monochromatic beam <= 1.7 mm in diameter
- Instrument
- Brucker Vertex 70 #2 – reflection Mid-IR
- Sample holder
- aluminum sample holder
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- NIR, MIR
- Valid spectral range(s)
-
Min - Max (μm) Sampling (μm) Resolution (μm) Position accuracy (μm) Absorption edge #1 2.3 - 18.0 0.00056 - Comments
- measured from 0.54 μm to 2.3 μm with SHINE and from 2.3 to 18 μm with Vertex70v instrument
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- biconical
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Observation mode
- single spot
- Spatial resolution
- 1.0 mm
- Instrument
- Brucker Vertex 70 + Hyperion 3000 – micro-transmission Mid-IR
- Sample holder
- The diamond windows were loaded into a cell, enabling temperature up to 300°C under vacuum (from 10-4 mbar down to 10-7 mbar). Optical access is permitted from both sides of the cell through KBr windows, thus enabling measurements in transmission.
- Standard medium
- vacuum
- 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 #1 600.0 - 4000.0 1.929 4.0 0.05
- Observation mode
- single spot
- Spots number
- 1
- Objective type
- x15
- Pixels number
- 1 x 1
- Image size
- 40.0 x 40.0 μm
- Spatial resolution
- 3.0 ± 1.0 μm
- Comments
- the typical size of the spot on the sample was 40 x 40 µm²
- Instrument
- Micro-Raman LabRam HR800 - 532 nm
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR, FIR
- Valid spectral range(s)
-
Min - Max (cm−1) Sampling (cm−1) Resolution (cm−1) Position accuracy (cm−1) Absorption edge #1 555.0 - 2171.0 1.7 0.2 - Filters
-
Type Center/Edge (cm−1) Width (cm−1) Place #1 532.3 nm edge filter 100.0 - Comments
- Sampling varies from 1.7 to 1.4 cm−1 in the 555-2170 cm−1 range
- Observation geometry
- confocal
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 0.0°
- Observation mode
- single spot
- Objective type
- x100
- Spatial resolution
- 1.0 μm
- Date begin - end
- 2024-11-25 - 2024-12-15
Versions
- Release date
- 2025-03-28 10:26:10 UTC+0000
- Version (Date)
- #1 (2025-03-28 10:26:10 UTC+0000, Updated: 2025-03-28 10:26:10 UTC+0000)