Spectrum

Vis-NIR reflectance spectrum of powdered Pyroxene (50-100 µm grains) at ambient temperature

Title
Vis-NIR reflectance spectrum of powdered Pyroxene (50-100 µm grains) at ambient temperature
DOI
10.26302/SSHADE/EXPERIMENT_OP_20200908_001
Data reference
Sultana, Robin (2018): Vis-NIR reflectance spectra of powdered olivine, pyroxene, smectite and silica at 4 different grain sizes (from sub-µm to 200 µm) and with sub-µm grains in compact or porous surfaces. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_OP_20200908_001
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
reflectance factor
Instrument
SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
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 5.0
#2 680.0 - 1380.0 20.0 10.0
#3 1400.0 - 2980.0 20.0 20.0
#4 3000.0 - 4200.0 20.0 40.0
Filters
Type Center/Edge ($nm$) Width ($nm$) Place
#1 long-pass filters of the spectro-gonio radiometer
Scan number
1
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution observation
4.1°
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 powdered olivine, pyroxene, smectite and silica at 4 different grain sizes (from sub-µm to 200 µm) and with sub-µm grains in compact or porous surfaces
Date begin
2019-12-16
Release date
2020-10-06 07:47:56 UTC+0000
Version (Date)
#1 (2020-10-06 07:47:56 UTC+0000, Updated: 2020-10-06 10:41:13 UTC+0000)
History
Date Mode Version Status Comments
2020-10-01 15:34:03 UTC+0000 first import #1 valid version
Analysis
raw bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (0.50-1.10µm) and 2) with "Infragold" using its relative spectral reflectance (1.10-4.18µm)
Quality flag
4
Validator(s)