Experiment
Title
MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperatures
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
Experimentalists
Type(s)
laboratory
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
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
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 $µm^2$
Date begin
2011-06-29