Experiment
Title
Near-infrared reflectance spectra at low temperature (300-90K) of Salammoniac and delta-Ammonium chloride (phase IV) [NH4Cl] powders with three grain size ranges (32-80, 80-125 and 125-150µm)
DOI
10.26302/SSHADE/EXPERIMENT_BS_20201114_012
Data reference
Fastelli, Maximiliano; Comodi, Paola; Schmitt, Bernard; Beck, Pierre; Poch, Olivier (2020): Near-infrared reflectance spectra at low temperature (300-90K) of Salammoniac and delta-Ammonium chloride (phase IV) [NH4Cl] powders with three grain size ranges (32-80, 80-125 and 125-150µm). SSHADE/CSS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20201114_012
Publications
Comments
Europlanet-2024 TNA data - unpublished yet
Type(s)
laboratory measurement
Description
Near-infrared reflectance spectra at low temperature of Salammoniac (beta-Ammonium chloride, phase II) (290-243K) and delta-Ammonium chloride (phase IV) (242-90K) powder [NH4Cl] with 32-80 µm grain size and Salammoniac powder at room temperature with 80-125µm and 125-150µm grain sizes
Number of spectra
31
Variable type(s)
  • sample grain size
  • sample phase
  • temperature
Comments
change from Salammoniac (phase II) above 242K to delta-Ammonium chloride (phase IV) below
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
Cylindrical aluminum sample holder placed in the isothermal CarboN-IR cryogenic cell with two saphire windows. For the measurements at room temperature the two windows are removed.
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
NIR
Valid spectral range(s)
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge
#1 1000.0 - 1600.0 10.0 7.7 1.0
#2 1610.0 - 2830.0 10.0 15.5 1.5
#3 2840.0 - 3200.0 10.0 30.0 3.0
#4 3220.0 - 4180.0 20.0 30.0 3.0
#5 4340.0 - 4800.0 20.0 30.0 3.0
Comments
A series of high pass filters is used to remove high orders of the gratings
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
20.0°
Azimuth angle
0.0°
Phase angle
20.0°
Resolution illumination
5.8°
Resolution observation
4.1°
Comments
'Gognito' illumination attachment with focused beam.
Illumination
Observation
Comments
Partial polarization variable with wavelength (from the 3 monochromator gratings used)
Observation mode
single spot
Spatial resolution
7.5 $mm$
Date begin - end
2020-11-10 - 2020-11-19

Versions

Release date
2022-04-23 08:19:38 UTC+0000
Version (Date)
#1 (2020-11-14 23:23:31 UTC+0000, Updated: 2022-04-23 08:19:38 UTC+0000)
Sponsors
  • European Commission - Horizon 2020-RI (EC-H2020) (EPN2024-RI: Europlanet 2020 Research Infrastructure, grant No 871149 (TA2/DPSF/CSS/20-EPN1-016))