Spectrum

Vis-NIR spectrum of CH3OH:H2O (4:1) ice at 60K irradiated to 154 eV/16u

Title
Vis-NIR spectrum of CH3OH:H2O (4:1) ice at 60K irradiated to 154 eV/16u
DOI
10.26302/SSHADE/EXPERIMENT_ZED_20250609_01
Data reference
Henault, Elsa (2021): Vis-NIR reflectance spectra of CH3OH:H2O mixtures at 35 and 60 K irradiated with H+ 30 keV. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_ZED_20250609_01
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
reflectance factor
Intensity unit
no unit
Instrument
Bruker Tensor - reflection Near-IR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max (μm) Sampling (μm) Resolution (μm) Position accuracy (μm) Absorption edge
#1 1.0 - 2.5 0.1 0.05
Comments
The resolution changes with the wavelenght.
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
10.0°
Emergence angle
10.0°
Azimuth angle
0.0°
Phase angle
0.0°
Observation mode
single spot
Image size
4.0 x 4.0 mm
Instrument
Maya2000 - microscopic reflection Visible-NIR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis
Valid spectral range(s)
Min - Max (μm) Sampling (μm) Resolution (μm) Position accuracy (μm) Absorption edge
#1 0.6 - 1.0 0.01 0.005
Comments
The resolution changes with the wavelenght.
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
10.0°
Emergence angle
10.0°
Azimuth angle
0.0°
Phase angle
0.0°
Observation mode
single spot
Image size
4.0 x 4.0 mm
Experiment
Vis-NIR reflectance spectra of CH3OH:H2O mixtures at 35 and 60 K irradiated with H+ 30 keV
Date begin
2021-11-10
Release date
2025-06-16 13:06:38+0000 UTC
Version (Date)
#1 (2025-06-16 13:06:38+0000 UTC, Updated: 2025-06-18 14:27:59+0000 UTC)
History
Date Mode Version Status Comments
2025-06-09 13:38:34+0000 UTC first import #1 valid version
Analysis
Reference spectra were collected on the Gold substrat. Spectra are normalized to unity at 1 µm where the junction is made between the visible and IR detectors. Spectral slopes above ~1.75 µm are not reliable but the data is shown as this spectral region contains the absorption bands of methanol and water.
Quality flag
4
Validator(s)