NIR reflectance spectrum of the Allende pellet irradiated by $He^+$ ions at 40 keV and a total fluence of $5.10^{15} ions.cm^{-2}$
- Title
- NIR reflectance spectrum of the Allende pellet irradiated by $He^+$ ions at 40 keV and a total fluence of $5.10^{15} ions.cm^{-2}$
- DOI
- 10.26302/SSHADE/EXPERIMENT_CL_20181201_07
- Data reference
- Lantz, Cateline (2015): Ion irradiation ($He^+$) of an Allende meteorite pellet probed by NIR spectroscopy. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_CL_20181201_07
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Intensity unit
- no unit
- Instrument
- Bruker Tensor - reflection Near-IR
- Sample holder
- The sample is mounted on a vertical holder in the vacuum chamber of INGMAR setup (IrradiatioN de Glaces et Météorites Analysées par Réflectance VIS-IR, IAS-CSNSM/Orsay)
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- NIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 4011.41 - 11756.5 16.0 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°
- Phase angle
- 15.0°
- Observation mode
- single spot
- Resolutions
- 3000.0 ${\pm}$ 1000.0 ${\mu}m$
- Comments
- The collecting spot size is 3–4 mm, larger than the pellet heterogeneity, and thus representative of all constituents of the meteorite (matrix and chondrules).
- Name
- Pellet of Allende powder
- Comments
- Allende pellet after irradiation by $He^+$ ions at 40 keV and a total fluence of $5.10^{15} ions.cm^{-2}$
- Experiment
- Ion irradiation ($He^+$) of an Allende meteorite pellet probed by NIR spectroscopy
- Date begin
- 2015-03-05
- Date end
- 2015-03-11
- Release date
- 2018-12-02 18:40:06 UTC+0000
- Version (Date)
- #1 (2018-12-02 18:40:06 UTC+0000, Updated: 2018-12-02 20:49:42 UTC+0000)
- History
-
Date Mode Version Status Comments 2018-12-01 23:24:26 UTC+0000 first import #1 valid version 2018-12-01: First import
- Analysis
- Reference spectrum was acquired using a Spectralon standard (with 99% Lambertian reflectance; Labsphere) to calibrate the absolute reflectance of our measurements.
- Quality flag
- 4
- Validator(s)