Experiment
Title
MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperatures
Data reference
Bonal, Lydie (2011): MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperatures. Version 1. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data.
Database(s)
Experimentalists
Type(s)
laboratory measurement
Description
Raw and normalized (baseline-corrected) MIR absorbance spectra of several matrix grains of QUE99177 (CR Chondrite) pressed on a diamond window and measured under vacuum at ambient temperature (22°C) and after heating at 300°C
Variable(s)
spectrum type, chemical variability, temperature
Number of spectra
27
Instrument
Brucker Vertex 70 + Hyperion 3000 – micro-transmission Mid-IR
Sample holder
The diamond windows were loaded into a cell, enabling temperatures up to 300°C under vacuum (from $10^{-4}$ mbar down to $10^{-7}$ mbar). Optical access is permitted from both sides of the cell through KBr windows, thus enabling measurements in transmission.
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
#1 600.0 - 5000.0 1.928712 4.0 0.05
Observation mode
single spot
Objective type
x15
Spots number
1
Pixels number
1 x 1
Image size
40.0 x 40.0 ${\mu}m$
Spatial resolution
3.0 ${\pm}$ 1.0 ${\mu}m$
Comments
the typical size of the spot on the sample was 40 x 40 $µm^2$
Variable type(s)
  • spectrum type
  • chemical variability
  • temperature
Date begin
2011-06-29

Versions

Release date
2018-01-31 23:51:01 UTC+0000
Version (Date)
#1 (2017-08-02 11:13:21 UTC+0000, Updated: 2018-10-12 17:04:49 UTC+0000)