Experiment
Title
NIR absorption coefficients spectra of CH4 from 93K to 20K for different phases
Data reference
Schmitt, Bernard; Grundy, Will (2001): NIR absorption coefficients spectra of CH4 from 93K to 20K for different phases. Version 1. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data.
Publications
Type(s)
laboratory measurement
Variable(s)
temperature, sample phase
Variable comments
series of absorption coefficient spectra from experiments with cooling from 93K to 20K with phase changes
Number of spectra
9
Instrument
Nicolet 800 – transmission Near-IR
Sample holder
Closed cells of variable thickness (0.1, 1, 10 mm) in UHV chamber
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 2000.0 - 7000.0 0.482131412702 0.92 0.05
Illumination
Type of polarization
no
Observation
Type of polarization
no
Comments
possibly partly polarized beam by beamsplitter
Observation mode
single spot
Image size
2.5 x 2.5 $mm$
Spatial resolution
2.5 ${\pm}$ 0.5 $mm$
Instrument
Nicolet 800 – transmission Visible/red
Sample holder
Closed cells of variable thickness (0.1, 1, 10 mm) in UHV chamber
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 7000.0 - 14350.0 0.482131412702 0.92 0.05
Illumination
Type of polarization
no
Observation
Type of polarization
no
Comments
possibly partly polarized beam by beamsplitter
Observation mode
single spot
Image size
2.5 x 2.5 $mm$
Spatial resolution
2.5 ${\pm}$ 0.5 $mm$
Variable type(s)
  • temperature
  • sample phase
Comments
series of absorption coefficient spectra from experiments with cooling from 93K to 20K with phase changes
Date begin
2001-01-01

Versions

Release date
2018-02-27 11:43:15 UTC+0000
Version (Date)
#1 (2017-11-17 17:16:56 UTC+0000, Updated: 2019-07-22 10:24:42 UTC+0000)