- Title
- MIR reflectance spectra of different samples of carbonaceous chondrites (pellets and fragments)
- DOI
- 10.26302/SSHADE/EXPERIMENT_CL_20180316_01
- Data reference
- Lantz, Cateline; Brunetto, Rosario; Baklouti, Donia; Dionnet, Zélia; Rubino, Stefano; Arribard, Yann (2018): MIR reflectance spectra of different samples of carbonaceous chondrites (pellets and fragments). SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_CL_20180316_01
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- Average MIR reflectance spectra of carbonaceous chondrites, obtained by hyperspectral imaging
- Number of spectra
- 10
- Comments
- Each final spectrum is the average of a very large number of spectra (> 3000), each resulting from 16 scans and obtained by one measurement per sample, thanks to the FPA detector of the instrument. Reference on gold was acquired with an attenuator at 12.5%.
- Variable type(s)
-
- sample texture
- sample composition
- Comments
- Measurements were made on different meteorites, either on millimetric fragments or pellets
- Instrument
- SMIS Cary 670 - confocal reflection Mid-IR
- Sample holder
- Horizontal plate under the microscope at ambiant air
- Standard medium
- air
- 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 #1 800.0 - 3800.0 4.0 4.0 1.0
Definition: incidence and emergence angles are positive with origin at nadir. Emergence angle in transmission is larger than 90° (=180°-i).
- Observation geometry
- direct
- Observation mode
- N/A
- Observation mode
- averaged
- Spots number
- 3500
- Objective type
- x15
- Pixels separation
- 5.5 x 5.5 ${\mu}m$
- Pixels number
- 128 x 128
- Image size
- 704.0 x 704.0 ${\mu}m$
- Spatial resolution
- 3.0 ${\pm}$ 1.0 ${\mu}m$ (3333.0 $cm^{-1}$)
- Comments
- The resolution changes with the wavelength according to the Abbe's equation.
- Date begin - end
- 2018-03-16 - 2022-01-01
Versions
- Release date
- 2022-06-06 11:06:12 UTC+0000
- Version (Date)
- #3 (2022-06-06 11:06:12 UTC+0000, Updated: 2022-06-06 11:20:34 UTC+0000)
- Older version(s)