Vis-NIR spectrum of NH4-Montmorillonite with 0-25µm grain sizes at 180K
- Title
- Vis-NIR spectrum of NH4-Montmorillonite with 0-25µm grain sizes at 180K
- DOI
- 10.26302/SSHADE/EXPERIMENT_BS_20191214_001
- Data reference
- Galiano, Anna; Dirri, Fabrizio; Schmitt, Bernard; Beck, Pierre; Brissaud, Olivier (2019): Vis-NIR spectra of NH4-Montmorillonite, Antigorite, Dolomite and Graphite and their mixtures with different grain sizes and temperatures (140-300 K). SSHADE/CSS+REFL_SLAB (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20191214_001
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Instrument
- SHINE Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- Aluminum cylindrical cell (10 mm diameter, 2 mm deep) inside P-T controled copper cell closed by sapphire windows and cooled by helium cryocooler (CarboN-IR environmental cell)
- 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 #1 600.0 - 660.0 20.0 3.2 1.0 #2 680.0 - 1380.0 20.0 6.4 1.0 #3 1400.0 - 2980.0 20.0 12.7 2.0 #4 3000.0 - 4180.0 20.0 25.7 4.0 - Scan number
- 10
- Comments
- measured in the 400-4200nm range using 1.0 mm slit - several high pass filters to cut higher diffraction orders of the grating
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°
- Comments
- using the 'Gognito' attachment
- Observation mode
- single spot
- Resolutions
- 7.5 $mm$
- Experiment
- Vis-NIR spectra of NH4-Montmorillonite, Antigorite, Dolomite and Graphite and their mixtures with different grain sizes and temperatures (140-300 K)
- Date begin
- 2019-02-18
- Release date
- 2020-03-02 12:02:26 UTC+0000
- Version (Date)
- #1 (2020-03-02 12:02:26 UTC+0000, Updated: 2020-03-02 18:16:42 UTC+0000)
- History
-
Date Mode Version Status Comments 2019-12-19 11:03:01 UTC+0000 first import #1 valid version
- Analysis
- raw bidirectional reflectance spectrum calibrated with Spectralon 99% (< 2.1 µm) and Infragold (> 2.1 µm) references under same geometry and with its absolute BRDF
- Quality flag
- 4