- DOI
- 10.26302/SSHADE/EXPERIMENT_BS_20250903_001
- Data reference
- Schmitt, Bernard (2021): Magnetite: Vis-NIR-MIR diffuse reflectance and Raman spectra. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20250903_001
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- Magnetite: Visible Near-IR and MIR bidirectional diffuse reflectance, and micro-Raman Far & Mid-IR spectra of powders and crystals
- Number of spectra
- 5
- Variable type(s)
-
- spectrum type
- spectral range
- Instrument
- SHINE Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- cylindrical raw aluminium sample holders of various sizes for powders
- 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 #1 400.0 - 678.0 4.0 1.92 0.5 #2 682.0 - 1598.0 4.0 3.8 0.5 #3 1602.0 - 2834.0 4.0 7.65 0.8 #4 2842.0 - 4180.0 8.0 15.45 1.6 - Filters
-
Type Center/Edge ($nm$) Width ($nm$) Place #1 several high frequency filters output of monochromator - Comments
- slit 600µm, resolution vary by up to $\pm2.5%$ over each 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
- bidirectional
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
- Resolution illumination
- 5.8°
- Resolution observation
- 4.1°
Illumination
Observation
- Comments
- some wavelength dependent polarization
- Observation mode
- single spot
- Spatial resolution
- 7.5 ${\pm}$ 0.2 $mm$
- Comments
- illumination with 9 fiber optic spots within 7.5 mm diameter, observation within an ellipse of 23x20 mm
- Instrument
- Brucker Vertex 70 #2 – reflection Mid-IR
- Sample holder
- cylindrical raw aluminium sample holders of various sizes for powders
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 510.0 - 6000.0 0.482 0.96 0.2
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°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
Illumination
Observation
- Comments
- some wavelength dependent polarization
- Observation mode
- single spot
- Spatial resolution
- 4.0 ${\pm}$ 0.2 $mm$
- Instrument
- Micro-Raman LabRam Soleil - 532 nm
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR, FIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 50.0 - 1840.0 1.85 3.7 0.4 - Filters
-
Type Center/Edge ($cm^{-1}$) Width ($cm^{-1}$) Place #1 532.3 nm Edge filter 100.0 - Comments
- diffraction grating: 1200 l/mm - sampling varies from 2.07 to 1.63 $cm^{-1}$ in the 50-1840 $cm^{-1}$ range. Edge filter: 532.3 nm
- Observation geometry
- confocal
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 0.0°
- Observation mode
- single spot
- Objective type
- x50 ELWD
- Spatial resolution
- 2.0 ${\mu}m$
- Comments
- spot of 2 µm in diameter
- Date begin - end
- 2021-04-27 - 2025-09-17
Versions
- Release date
- 2025-10-19 19:02:27+0000 UTC
- Version (Date)
- #1 (2025-10-19 19:02:27+0000 UTC, Updated: 2025-10-19 19:02:27+0000 UTC)
- Sponsors
-
- Observatoire des Sciences de l'Univers (OSUG) (SNO SSHADE)