MIR spectra of methanol ice irradiated by H^+ ions at 45 K, increasing irradiation doses | DAYSY | SSHADE

Experiment

Title: MIR spectra of methanol ice irradiated by $H^+$ ions at 45 K, increasing irradiation doses

DOI: 10.26302/SSHADE/EXPERIMENT_ZED_20250224_01
Data reference: Henault, Elsa (2024): MIR spectra of methanol ice irradiated by $H^+$ ions at 45 K, increasing irradiation doses. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20250224_01

Database(s)

Experimentalists

Elsa Henault

Spectra preview

Experiment type

Type(s): laboratory measurement
Description: Mid-IR spectra of methanol ice, at 45 K, increasing irradiation doses: unirradiated and irradiated by $H^+$ ions at 30 keV and a total fluence of $1.10^{16} ions.cm{-2}$ .
Number of spectra: 6

Variable parameters

Variable type(s)

irradiation dose

Comments

We irradiated methanol ice on the SIDONIE isotope separator at IJCLab (Orsay, France) using

H^{+}

$H^+$ ions at 30 keV and a total fluence of

{1.10}^{16}

$1.10^{16}$

i o n s . c m^{- 2}

$ions.cm^{-2}$ . Reference spectra were collected on the MgF2 substrat. Spectra are corrected for athmospheric contribution (CO2 and H2O).

Laboratory: Institut d'Astrophysique Spatiale (IAS)

Instrument: Bruker Tensor - transmission Mid-IR

Spectral parameters

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	1000.0 - 7000.0		1.0	0.5

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: fixed angles
Incidence angle: 10.0°
Emergence angle: 170.0°
Azimuth angle: 180.0°
Phase angle: 180.0°

Spatial parameters

Observation mode: single spot

Date begin: 2024-07-08

Versions

Release date: 2025-03-18 10:28:28+0000 UTC
Version (Date): #1 (2025-03-18 10:28:28+0000 UTC, Updated: 2025-03-18 10:28:28+0000 UTC)