Spectrum

Vis-NIR reflectance spectrum of 0.10% PAHs mixed with CO2 snow - t=0

Title
Vis-NIR reflectance spectrum of 0.10% PAHs mixed with CO2 snow - t=0
DOI
10.26302/SSHADE/EXPERIMENT_BS_20181101_001
Data reference
Campbell, Jacqueline; Schmitt, Bernard; Beck, Pierre; Brissaud, Olivier (2017): Vis-NIR reflectance spectra of a mix of three PAHs, PAHs mixed with CO2 snow and PAHs mixed with JSC Mars-1 simulant. SSHADE/CSS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20181101_001
Publications
Experiment type
laboratory measurement
Type
reflectance factor
Comments
noisy below 0.7 µm (first grating)
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
Aluminum cylindrical cell (48 mm diameter, 20 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 (μm) Sampling (μm) Resolution (μm) Position accuracy (μm) Absorption edge
#1 0.7 - 1.6 0.02 0.0095 0.001
#2 1.6 - 3.0 0.02 0.0191 0.002
#3 3.0 - 3.6 0.02 0.0388 0.004
Scan number
10
Comments
using 1.5mm slit
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
20.0°
Azimuth angle
0.0°
Phase angle
20.0°
Resolution illumination
0.1°
Resolution observation
4.1°
Illumination
Observation
Comments
polarization varying between gratings
Observation mode
single spot
Resolutions
20.0 mm
Name
CO2 snow with 0.10% of a PAH mix
Changes
CO2 sublimation: sample thickness decreased from 18 to 15 mm during spectrum
Comments
already 2 mm CO2 sublimated at start of spectrum - possible increase of PAH concentration
Experiment
Vis-NIR reflectance spectra of a mix of three PAHs, PAHs mixed with CO2 snow and PAHs mixed with JSC Mars-1 simulant
Date begin
2017-10-17 11:30:00
Date end
2017-10-17 12:30:00
Release date
2021-05-25 12:01:01+0000 UTC
Version (Date)
#1 (2021-05-25 12:01:01+0000 UTC, Updated: 2021-05-25 12:01:01+0000 UTC)
History
Date Mode Version Status Comments
2018-11-13 17:56:51+0000 UTC first import #1 valid version 2017-10-17: first import
Analysis
raw bidirectional reflectance spectrum calibrated: 1) in the 0.4-2.5µm range with "Spectralon 99%" standard (LabSphere (c)) measured under same geometry using its absolute BRDF and 2) in the 2.5-3.6µm range with "Infragold" (LabSphere (c)) using its relative spectral reflectance
Quality flag
4
Validator(s)