Spectrum

raw MIR absorbance spectrum of pressed MAC87320 matrix grain N°2, at T=250°C and under vacuum

Title
raw MIR absorbance spectrum of pressed MAC87320 matrix grain N°2, at T=250°C and under vacuum
DOI
10.26302/SSHADE/EXPERIMENT_LB_20221024_001
Data reference
Prestgard, Trygve; Bonal, Lydie; Beck, Pierre (2021): MIR absorbance spectra of pressed matrix grains from CR chondrites at varaible conditions of temperature and pressure. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20221024_001
Publications
Experiment type
laboratory measurement
Type
absorbance
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 104 mbar down to 107 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 (cm1) Sampling (cm1) Resolution (cm1) Position accuracy (cm1) Absorption edge
#1 700.0 - 4000.0 1.928712 4.0 0.05
Scan number
400
Observation mode
single spot
Spots number
1
Objective type
x15
Pixels number
1 x 1
Image size
40.0 x 40.0 μm
Resolutions
3.0 ± 1.0 μm
Comments
the typical size of the spot on the sample was 40 x 40 µm2
Name
MAC87320 matrix grains (CR) heated at 250°C under vacuum
Primary constituent(s)
Experiment
MIR absorbance spectra of pressed matrix grains from CR chondrites at varaible conditions of temperature and pressure
Date begin
2021-01-01
Release date
2024-09-03 08:55:36 UTC+0000
Version (Date)
#1 (2024-09-03 08:55:36 UTC+0000, Updated: 2024-09-03 08:55:36 UTC+0000)
History
Date Mode Version Status Comments
2022-10-24 16:02:58 UTC+0000 first import #1 valid version
Analysis
raw calibrated transmission spectrum converted in absorbance, without baseline correction
Quality flag
4
Validator(s)