Average reflectance spectrum of a fragment of Murray chondrite (CM2) in the MIR range

Spectrum

Title: Average reflectance spectrum of a fragment of Murray chondrite (CM2) in the MIR range

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Data

Unit: Range: Valid spectral range(s): 850.0 - 3800.0 cm-1

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References

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

Owner

Database

DAYSY

Experimentalists

Spectrum type

Experiment type: laboratory measurement
Type: normalized reflectance
Intensity unit: no unit
Reference position: 995.0 $cm^{-1}$
Comments: The spectrum is the average of 49152 spectra each resulting from 512 scans and obtained by 3 measurements on 3 adjacent areas of 128x128 pixels thanks to the FPA detector of the instrument. Reference spectrum was acquired on a gold surface.

Instrument #1

Instrument: SMIS Cary 670 - confocal reflection Mid-IR
Sample holder: Horizontal plate under the microscope at ambiant air

Spectral parameters

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	850.0 - 3800.0	4.0	4.0	1.0

Scan number

512

Angular parameters

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

Spatial parameters

Observation mode: averaged
Spots number: 49152
Objective type: x15
Pixels separation: 5.5 x 5.5 ${\mu}m$
Pixels number: 384 x 128
Image size: 2112.0 x 704.0 ${\mu}m$
Resolutions: 3.0 ${\pm}$ 1.0 ${\mu}m$ (3333.0 $cm^{-1}$)
Comments: The resolution changes with the wavelength according to the Abbe's equation.