Experiment
Title
$He^+$ irradiation of carbonaceous chondrite pellets probed by NIR-MIR spectroscopy
DOI
10.26302/SSHADE/EXPERIMENT_CL_20181202_05
Data reference
Lantz, Cateline (2015): $He^+$ irradiation of carbonaceous chondrite pellets probed by NIR-MIR spectroscopy. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_CL_20181202_05
Publications
Database(s)
Experimentalists
Spectra preview
Experiment type
Type(s)
laboratory measurement
Description
Near and Mid-IR spectra of carbonaceous chondrite pellets: unirradiated area and area irradiated by $He^+$ ions at 40 keV and a total fluence of $6.10^{16} ions.cm{-2}$.
Number of spectra
12
Comments
Reference spectra were collected on a gold surface.
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, two areas were measured in the NIR-MIR range: a virgin (=non irradiated) area, and an irradiated one.
Laboratory
Institut d'Astrophysique Spatiale (IAS)
Instrument #1
Instrument
SMIS iN10 - confocal reflexion Near and Mid-IR
Standard medium
air
Observation mode
spectrum
Spectral range type(s)
NIR, MIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 549.636 - 7999.62 4.0 1.0
Observation geometry
direct
Observation mode
N/A
Observation mode
averaged
Spots number
10
Objective type
x15
Pixels separation
200.0 x 200.0 ${\mu}m$
Pixels number
100 x 100
Image size
600.0 x 300.0 ${\mu}m$
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
2015-03-23

Versions

Release date
2022-06-07 15:00:31 UTC+0000
Version (Date)
#1 (2022-06-07 15:00:31 UTC+0000, Updated: 2022-07-08 08:05:21 UTC+0000)