Spectrum

VisNIR reflectance spectrum of irradiated Griffithite saponite pellet (He+, 1E16 ions/cm2)

Title
VisNIR reflectance spectrum of irradiated Griffithite saponite pellet (He+, 1E16 ions/cm2)
DOI
10.26302/SSHADE/EXPERIMENT_SR_20200204_02
Data reference
Rubino, Stefano (2020): Ion irradiation ($He^+$) of a Griffithite saponite pellet probed by IR spectroscopy in the Vis-NIR range. SSHADE/DAYSY (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_SR_20200204_02
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
bidirectional reflectance
Intensity unit
no unit
Comments
The Near-IR region of the spectrum (from 1 to 4 µm) was shifted to match the reflectance measured in the Visible region, using the reflectance in the Visible at 1 µm as anchor point.
Instrument
Maya2000 - microscopic reflection Visible-NIR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.35995 - 1.5 0.0005 1.0
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
20.0°
Emergence angle
15.0°
Azimuth angle
0.0°
Phase angle
20.0°
Observation mode
single spot
Comments
Collection spot size of 3-4 mm in diameter
Instrument
Bruker Tensor - reflection Near-IR
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 1.0 - 3.9989 0.0005 1.0
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
20.0°
Emergence angle
15.0°
Azimuth angle
0.0°
Phase angle
15.0°
Observation mode
single spot
Comments
Collection spot size of 3-4 mm in diameter
Name
Pellet of Saponite Griffithite
Comments
irradiated Griffithite saponite pellet (He+, 1E16 ions/cm2)
Experiment
Ion irradiation ($He^+$) of a Griffithite saponite pellet probed by IR spectroscopy in the Vis-NIR range
Date begin
2020-02-04
Release date
2022-05-28 20:10:40 UTC+0000
Version (Date)
#1 (2022-05-28 20:10:40 UTC+0000, Updated: 2022-07-08 09:22:31 UTC+0000)
History
Date Mode Version Status Comments
2022-05-20 15:16:09 UTC+0000 first import #1 valid version 2022-05-29: First import
Analysis
To calibrate the absolute reflectance of our measurement, we acquired reference spectra in the vacuum chamber using a Spectralon standard (99% Lambertian reflectance, Labsphere). An additional reference measurement was performed on InfraGold (Labsphere), which allowed the correction of minor NIR features present in the Spectralon spectrum.
Quality flag
4