MIR spectra of Mercury terrestrial analogues irradiated by He^+ ions | DAYSY

Experiment

Title: MIR spectra of Mercury terrestrial analogues irradiated by $He^+$ ions

References

DOI: 10.26302/SSHADE/EXPERIMENT_ZED_20250127_01
Data reference: Caminiti, Emma; Lantz, Cateline (2024): MIR spectra of Mercury terrestrial analogues irradiated by $He^+$ ions. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20250127_01

Owner

Database(s)

DAYSY

Experimentalists

Spectra preview

Experiment type

Type(s): laboratory measurement
Description: Mid-IR spectra of Mercury terrestrial analogues pellets: unirradiated area and area irradiated by $He^+$ ions at 20 keV and a fluence up to $5.10^{17} ions.cm{-2}$ .
Number of spectra: 12

Variable parameters

Variable type(s)

sample composition
irradiation dose

Comments

We irradiated pellets of Mercury terrestrial analogues on the SIDONIE isotope separator at IJCLab (Orsay, France) using

$He^+$ ions at 20 keV and a fluence up to

$5.10^{17}$

$ions.cm^{-2}$ .Two pellets were measured for each type of analogues. For each pellet, half of the samples was measured unirradiated and the other half was measured after irration with He+ with a fluence of

$1.10^{17}$

$ions.cm^{-2}$ for the first samples and

$5.10^{17}$

$ions.cm^{-2}$ for the second sample (bis).

Location

Laboratory: Institut d'Astrophysique Spatiale (IAS)

Instrument #1

Instrument: SMIS Cary 670 - confocal reflection Mid-IR

Spectral parameters

Standard medium

vacuum

Observation mode

spectrum

Spectral range type(s)

MIR

Valid spectral range(s)

	Min - Max ( ${\mu}m$ )	Sampling ( ${\mu}m$ )	Resolution ( ${\mu}m$ )	Position accuracy ( ${\mu}m$ )	Absorption edge
#1	7.0 - 15.4		4.0	1.0

Angular parameters

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: 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

Spatial parameters

Observation mode: averaged
Spots number: 4
Objective type: x15
Image size: 200.0 x 200.0 ${\mu}m$
Comments: The spot size was between 160 and 400 μm^2. The resolution changes with the wavelength according to the Abbe's equation.

History

Date begin: 2024-01-01

Versions

Release date: 2025-02-17 11:25:33+0000 UTC
Version (Date): #1 (2025-02-17 11:25:33+0000 UTC, Updated: 2025-02-17 11:25:33+0000 UTC)

Image