- DOI
- 10.26302/SSHADE/EXPERIMENT_LB_20250114_001
- Data reference
- Valantinas, Adomas; Beck, Pierre; Poch, Olivier (2023): NIR reflectance spectra of several powdered iron oxides. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20250114_001
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- NIR reflectance spectra (i = 0°, e = 30° of powdered samples of feroxyhyte, goethite, magnetite, akaganeite and maghemite
- Number of spectra
- 5
- Variable type(s)
-
- sample composition
- Instrument
- Brucker Vertex 70 #2 – reflection Mid-IR
- Sample holder
- aluminum sample holder
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- NIR
- Valid spectral range(s)
-
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge #1 2000.0 - 4500.0 5e-08 2.5e-08 - Comments
- sampling = 2 $cm^{-1}$ and resolution = 4 $cm^{-1}$ - measured from 2 to 4.5 μm with Vertex70v instrument and with other instrument(s) in different institute(s) for the complementary spectral range
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- Observation geometry
- biconical
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Observation mode
- single spot
- Spatial resolution
- 1.0 $mm$
- Date begin
- 2023-03-01
Versions
- Release date
- 2025-01-27 09:39:36 UTC+0000
- Version (Date)
- #1 (2025-01-27 09:39:36 UTC+0000, Updated: 2025-01-27 09:39:36 UTC+0000)