Spectrum

VNIR reflectance of Magnesium chloride dihydrate 125-150 µm grain size at T = 255 K

Title
VNIR reflectance of Magnesium chloride dihydrate 125-150 µm grain size at T = 255 K
DOI
10.26302/SSHADE/EXPERIMENT_CC_20190501_01
Data reference
DeAngelis, Simone; Carli, Cristian; Tosi, Federico; Beck, Pierre; Brissaud, Olivier; Schmitt, Bernard; Potin, Sandra (2019): VNIR reflectance spectra of Magnesium chloride dihydrate with 3 different grain sizes and at variable temperature (80-295 K). SSHADE/REFL_SLAB+CSS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_CC_20190501_01
Publications
Experiment type
laboratory measurement
Type
reflectance factor
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
Aluminum plate with 5 mm deep circular hole (48 mm diameter) 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 (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.5 - 0.68 0.02 0.005 0.001
#2 0.7 - 1.6 0.02 0.01 0.001
#3 1.6 - 3.0 0.02 0.019 0.002
#4 3.0 - 4.7 0.02 0.039 0.004
Comments
Measured over the 0.50-4.70 µm range
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
30.0°
Emergence angle
0.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution illumination
5.8°
Resolution observation
4.1°
Comments
resolution function is a door shape
Observation mode
single spot
Resolutions
7.5 $mm$
Experiment
VNIR reflectance spectra of Magnesium chloride dihydrate with 3 different grain sizes and at variable temperature (80-295 K)
Date begin
2019-05-14
Release date
2021-10-27 11:32:29 UTC+0000
Version (Date)
#1 (2021-10-27 11:32:29 UTC+0000, Updated: 2021-10-27 11:32:29 UTC+0000)
History
Date Mode Version Status Comments
2021-10-26 10:12:31 UTC+0000 first import #1 valid version
Analysis
raw bidirectional reflectance spectrum calibrated: 1) in the 0.5-2.1µm range with "Spectralon 99%" standard (LabSphere (c)) measured under same geometry using its absolute BRDF and 2) in the 2.1-4.7µm range with "Infragold" (LabSphere (c)) using its relative spectral reflectance
Quality flag
4
Validator(s)