Spectrum

Vis-NIR reflectance spectrum of a pellet of 100% vermiculite (inf. 0.1 mm)

Title
Vis-NIR reflectance spectrum of a pellet of 100% vermiculite (inf. 0.1 mm)
DOI
10.26302/SSHADE/EXPERIMENT_LM_20220302_OLVE
Data reference
Mandon, Lucia; Beck, Pierre (2020): Vis-NIR reflectance spectra of pellets of olivine (0.1-1 mm) and vermiculite (inf. 0.1 mm) mixtures. SSHADE/ROMA (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LM_20220302_OLVE
Publications
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 (μm) Sampling (μm) Resolution (μm) Position accuracy (μm) 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 380-2700 nm range
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 olivine (0.1-1 mm) and vermiculite (inf. 0.1 mm) mixtures
Date begin
2020-01-21
Release date
2022-03-04 12:30:26+0000 UTC
Version (Date)
#1 (2022-03-04 12:30:26+0000 UTC, Updated: 2022-03-04 12:30:26+0000 UTC)
History
Date Mode Version Status Comments
2022-03-03 09:58:24+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)