Vis-NIR reflectance spectrum of a pellet of 5% Na-montmorillonite and 95% kaolinite
- Title
- Vis-NIR reflectance spectrum of a pellet of 5% Na-montmorillonite and 95% kaolinite
- DOI
- 10.26302/SSHADE/EXPERIMENT_LM_20220304_MTKL
- Data reference
- Mandon, Lucia; Beck, Pierre (2020): Vis-NIR reflectance spectra of pellets of Na-montmorillonite and kaolinite mixtures. SSHADE/ROMA (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LM_20220304_MTKL
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Intensity unit
- no unit
- Instrument
- SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- Flat sample holder in anodized aluminum (not blackened)
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 0.38 - 0.66 0.02 0.0048 #2 0.68 - 1.48 0.02 0.0095 #3 1.5 - 2.7 0.02 0.019 - Scan number
- 10
- Comments
- Measured over the 340-2700 nm range
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
- 2.9°
- Resolution observation
- 2.05°
Illumination
Observation
- Comments
- Partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Resolutions
- 5.2 $mm$
- Experiment
- Vis-NIR reflectance spectra of pellets of Na-montmorillonite and kaolinite mixtures
- Date begin
- 2020-01-21
- Release date
- 2022-03-04 17:53:03+0000 UTC
- Version (Date)
- #1 (2022-03-04 17:53:03+0000 UTC, Updated: 2022-03-04 17:53:03+0000 UTC)
- History
-
Date Mode Version Status Comments 2022-03-04 17:23:14+0000 UTC first import #1 valid version
- Analysis
- Raw bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (inf. 2.2 µm) and 2) with "Infragold" using its relative spectral reflectance (sup. 2.2 µm)
- Quality flag
- 4
- Validator(s)