Experiment
Title
MIR spectra of carbonaceous chondrites irradiated by $He^+$ ions
DOI
10.26302/SSHADE/EXPERIMENT_ZED_20240701_01
Data reference
Lantz, Cateline (2022): MIR spectra of carbonaceous chondrites irradiated by $He^+$ ions. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20240701_01
Database(s)
Experimentalists
Spectra preview
Experiment type
Type(s)
laboratory measurement
Description
Mid-IR spectra of carbonaceous chondrite pellets and chips: unirradiated area and area irradiated by $He^+$ ions at 4, 15, 20 and 40 keV and a total fluence of $6.10^{16} ions.cm{-2}$.
Number of spectra
14
Variable type(s)
  • sample composition
  • irradiation dose
Comments
We irradiated pellets of different carbonaceous chondrites on the SIDONIE isotope separator at IJCLab (Orsay, France) using $He^+$ ions at 40 keV and a total fluence of $6.10^{16}$ $ions.cm^{-2}$ . For each samples, several areas were measured in the MIR range corresponding to an unirradiated area and to different doses of irradiation.
Laboratory
Institut d'Astrophysique Spatiale (IAS)
Instrument #1
Instrument
SMIS Cary 670 - confocal reflection Mid-IR
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
#1 800.0 - 1250.0 4.0 1.0
Observation geometry
specular
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
0.0°
Azimuth angle
180.0°
Phase angle
0.0°
Comments
numerical aperture of 0.62
Observation mode
averaged
Objective type
x15
Image size
13000.0 x 13000.0 ${\mu}m$
Comments
The resolution changes with the wavelength according to the Abbe's equation.
Date begin
2022-01-01

Versions

Release date
2024-12-17 10:23:03 UTC+0000
Version (Date)
#2 (2024-12-17 10:23:03 UTC+0000, Updated: 2024-12-17 15:23:46 UTC+0000)
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