Experiment
Title
Vis-NIR reflectance spectra of a powdered and a cut section of NWA4766 (basaltic shergottite) at various observational geometries
DOI
10.26302/SSHADE/EXPERIMENT_LB_20210517_001
Data reference
Mandon, Lucia; Beck, Pierre (2018): Vis-NIR reflectance spectra of a powdered and a cut section of NWA4766 (basaltic shergottite) at various observational geometries. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20210517_001
Publications
Type(s)
laboratory measurement
Description
Vis-NIR reflectance spectra of a powdered and a cut section of NWA4766 (basaltic shergottite) at various observational geometries with emergence angles between -60° and 60° by steps of 10° for the powder and between -50° and 50° by steps of 10° for the cut section sample
Number of spectra
64
Variable type(s)
  • illumination-observation geometry
  • sample texture
Instrument
SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
open sample holder (13 mm diameter, 2 mm deep) in anodized aluminum (not blackened) for powdered NWA4766 and flat sample holder in anodized aluminum for cut section of NWA4766
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
#1 359.99999999999966 - 599.9999999999986 20.0 4.8
#2 699.9999999999991 - 1400.0000000000002 20.0 8.0
#3 1499.999999999999 - 3000.0000000000023 20.0 4.0
Comments
measurements over the 360 - 3000 nm range
Observation geometry
bidirectional
Observation mode
three variable angles
Resolution illumination
2.9°
Resolution observation
2.05°
Illumination
Observation
Comments
partial polarization variable with wavelength (from monochromator grating)
Observation mode
single spot
Image size
5.2 x 5.2 $mm$
Date begin
2018-04-01

Versions

Release date
2021-05-19 13:59:21 UTC+0000
Version (Date)
#1 (2021-05-18 17:21:59 UTC+0000, Updated: 2021-05-19 13:59:21 UTC+0000)