VisNIR reflectance spectrum of irradiated NWA 4968 pellet (He+, 3E16 ions/cm2)
- Title
- VisNIR reflectance spectrum of irradiated NWA 4968 pellet (He+, 3E16 ions/cm2)
- DOI
- 10.26302/SSHADE/EXPERIMENT_ZED_20260116_01
- Data reference
- Rubino, Stefano (2022): $He^+$ irradiation of meterotic HED pellets probed by Vis-NIR spectroscopy. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20260116_01
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- bidirectional reflectance
- Intensity unit
- no unit
- Comments
- The Near-IR region of the spectrum (from 1 to 4 µm) was shifted to match the reflectance measured in the Visible region, using the reflectance in the Visible at 1 µm as anchor point.
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 0.35995 - 1.1 0.0005 1.0
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
- 15.0°
- Emergence angle
- 15.0°
- Azimuth angle
- 0.0°
- Phase angle
- 20.0°
- Observation mode
- single spot
- Comments
- Collection spot size of 4 mm in diameter
- Instrument
- Bruker Tensor - reflection Near-IR
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- NIR
- Valid spectral range(s)
-
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge #1 1.0 - 4.0 0.0005 1.0
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
- 20.0°
- Emergence angle
- 15.0°
- Azimuth angle
- 0.0°
- Phase angle
- 15.0°
- Observation mode
- single spot
- Comments
- Collection spot size of 4 mm in diameter
- Name
- NWA 4968 pellet
- Comments
- irradiated NWA 4968 pellet (He+, 3E16 ions/cm2)
- Experiment
- $He^+$ irradiation of meterotic HED pellets probed by Vis-NIR spectroscopy
- Date begin
- 2022-01-01
- Release date
- 2026-01-22 13:39:56+0000 UTC
- Version (Date)
- #1 (2026-01-22 13:39:56+0000 UTC, Updated: 2026-01-22 13:39:56+0000 UTC)
- History
-
Date Mode Version Status Comments 2026-01-22 10:11:44+0000 UTC first import #1 valid version
- Analysis
- To calibrate the absolute reflectance of our measurement, we acquired reference spectra in the vacuum chamber using a Spectralon standard (99% Lambertian reflectance, Labsphere). An additional reference measurement was performed on InfraGold (Labsphere), which allowed the correction of minor NIR features present in the Spectralon spectrum.
- Quality flag
- 4